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https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_free_in_fastReplaceFree_self
[258, 1]
[290, 10]
simp only [fastReplaceFree]
case def_ v t : VarName a✝¹ : DefName a✝ : List VarName h1 : v ∉ a✝ ⊢ fastReplaceFree v t (def_ a✝¹ a✝) = def_ a✝¹ a✝
case def_ v t : VarName a✝¹ : DefName a✝ : List VarName h1 : v ∉ a✝ ⊢ def_ a✝¹ (List.map (fun x => if v = x then t else x) a✝) = def_ a✝¹ a✝
Please generate a tactic in lean4 to solve the state. STATE: case def_ v t : VarName a✝¹ : DefName a✝ : List VarName h1 : v ∉ a✝ ⊢ fastReplaceFree v t (def_ a✝¹ a✝) = def_ a✝¹ a✝ TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_free_in_fastReplaceFree_self
[258, 1]
[290, 10]
simp
v t : VarName X : DefName xs : List VarName h1 : v ∉ xs ⊢ def_ X (List.map (fun x => if v = x then t else x) xs) = def_ X xs
v t : VarName X : DefName xs : List VarName h1 : v ∉ xs ⊢ List.map (fun x => if v = x then t else x) xs = xs
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName X : DefName xs : List VarName h1 : v ∉ xs ⊢ def_ X (List.map (fun x => if v = x then t else x) xs) = def_ X xs TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_free_in_fastReplaceFree_self
[258, 1]
[290, 10]
simp only [List.map_eq_self_iff]
v t : VarName X : DefName xs : List VarName h1 : v ∉ xs ⊢ List.map (fun x => if v = x then t else x) xs = xs
v t : VarName X : DefName xs : List VarName h1 : v ∉ xs ⊢ ∀ x ∈ xs, (if v = x then t else x) = x
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName X : DefName xs : List VarName h1 : v ∉ xs ⊢ List.map (fun x => if v = x then t else x) xs = xs TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_free_in_fastReplaceFree_self
[258, 1]
[290, 10]
simp
v t : VarName X : DefName xs : List VarName h1 : v ∉ xs ⊢ ∀ x ∈ xs, (if v = x then t else x) = x
v t : VarName X : DefName xs : List VarName h1 : v ∉ xs ⊢ ∀ x ∈ xs, v = x → t = x
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName X : DefName xs : List VarName h1 : v ∉ xs ⊢ ∀ x ∈ xs, (if v = x then t else x) = x TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_free_in_fastReplaceFree_self
[258, 1]
[290, 10]
intro x a1 a2
v t : VarName X : DefName xs : List VarName h1 : v ∉ xs ⊢ ∀ x ∈ xs, v = x → t = x
v t : VarName X : DefName xs : List VarName h1 : v ∉ xs x : VarName a1 : x ∈ xs a2 : v = x ⊢ t = x
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName X : DefName xs : List VarName h1 : v ∉ xs ⊢ ∀ x ∈ xs, v = x → t = x TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_free_in_fastReplaceFree_self
[258, 1]
[290, 10]
subst a2
v t : VarName X : DefName xs : List VarName h1 : v ∉ xs x : VarName a1 : x ∈ xs a2 : v = x ⊢ t = x
v t : VarName X : DefName xs : List VarName h1 : v ∉ xs a1 : v ∈ xs ⊢ t = v
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName X : DefName xs : List VarName h1 : v ∉ xs x : VarName a1 : x ∈ xs a2 : v = x ⊢ t = x TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_free_in_fastReplaceFree_self
[258, 1]
[290, 10]
contradiction
v t : VarName X : DefName xs : List VarName h1 : v ∉ xs a1 : v ∈ xs ⊢ t = v
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName X : DefName xs : List VarName h1 : v ∉ xs a1 : v ∈ xs ⊢ t = v TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_free_in_fastReplaceFree_self
[258, 1]
[290, 10]
simp
v t x y : VarName h1 : ¬(v = x ∨ v = y) ⊢ eq_ (if v = x then t else x) (if v = y then t else y) = eq_ x y
v t x y : VarName h1 : ¬(v = x ∨ v = y) ⊢ (v = x → t = x) ∧ (v = y → t = y)
Please generate a tactic in lean4 to solve the state. STATE: v t x y : VarName h1 : ¬(v = x ∨ v = y) ⊢ eq_ (if v = x then t else x) (if v = y then t else y) = eq_ x y TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_free_in_fastReplaceFree_self
[258, 1]
[290, 10]
tauto
v t x y : VarName h1 : ¬(v = x ∨ v = y) ⊢ (v = x → t = x) ∧ (v = y → t = y)
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t x y : VarName h1 : ¬(v = x ∨ v = y) ⊢ (v = x → t = x) ∧ (v = y → t = y) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_free_in_fastReplaceFree_self
[258, 1]
[290, 10]
tauto
v t : VarName phi : Formula phi_ih : ¬isFreeIn v phi → fastReplaceFree v t phi = phi h1 : ¬isFreeIn v phi ⊢ (fastReplaceFree v t phi).not_ = phi.not_
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName phi : Formula phi_ih : ¬isFreeIn v phi → fastReplaceFree v t phi = phi h1 : ¬isFreeIn v phi ⊢ (fastReplaceFree v t phi).not_ = phi.not_ TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_free_in_fastReplaceFree_self
[258, 1]
[290, 10]
simp
v t : VarName phi psi : Formula phi_ih : ¬isFreeIn v phi → fastReplaceFree v t phi = phi psi_ih : ¬isFreeIn v psi → fastReplaceFree v t psi = psi h1 : ¬(isFreeIn v phi ∨ isFreeIn v psi) ⊢ (fastReplaceFree v t phi).iff_ (fastReplaceFree v t psi) = phi.iff_ psi
v t : VarName phi psi : Formula phi_ih : ¬isFreeIn v phi → fastReplaceFree v t phi = phi psi_ih : ¬isFreeIn v psi → fastReplaceFree v t psi = psi h1 : ¬(isFreeIn v phi ∨ isFreeIn v psi) ⊢ fastReplaceFree v t phi = phi ∧ fastReplaceFree v t psi = psi
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName phi psi : Formula phi_ih : ¬isFreeIn v phi → fastReplaceFree v t phi = phi psi_ih : ¬isFreeIn v psi → fastReplaceFree v t psi = psi h1 : ¬(isFreeIn v phi ∨ isFreeIn v psi) ⊢ (fastReplaceFree v t phi).iff_ (fastReplaceFree v t psi) = phi.iff_ psi...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_free_in_fastReplaceFree_self
[258, 1]
[290, 10]
tauto
v t : VarName phi psi : Formula phi_ih : ¬isFreeIn v phi → fastReplaceFree v t phi = phi psi_ih : ¬isFreeIn v psi → fastReplaceFree v t psi = psi h1 : ¬(isFreeIn v phi ∨ isFreeIn v psi) ⊢ fastReplaceFree v t phi = phi ∧ fastReplaceFree v t psi = psi
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName phi psi : Formula phi_ih : ¬isFreeIn v phi → fastReplaceFree v t phi = phi psi_ih : ¬isFreeIn v psi → fastReplaceFree v t psi = psi h1 : ¬(isFreeIn v phi ∨ isFreeIn v psi) ⊢ fastReplaceFree v t phi = phi ∧ fastReplaceFree v t psi = psi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_free_in_fastReplaceFree_self
[258, 1]
[290, 10]
simp
v t x : VarName phi : Formula phi_ih : ¬isFreeIn v phi → fastReplaceFree v t phi = phi h1 : ¬(¬v = x ∧ isFreeIn v phi) ⊢ (if v = x then exists_ x phi else exists_ x (fastReplaceFree v t phi)) = exists_ x phi
v t x : VarName phi : Formula phi_ih : ¬isFreeIn v phi → fastReplaceFree v t phi = phi h1 : ¬(¬v = x ∧ isFreeIn v phi) ⊢ ¬v = x → fastReplaceFree v t phi = phi
Please generate a tactic in lean4 to solve the state. STATE: v t x : VarName phi : Formula phi_ih : ¬isFreeIn v phi → fastReplaceFree v t phi = phi h1 : ¬(¬v = x ∧ isFreeIn v phi) ⊢ (if v = x then exists_ x phi else exists_ x (fastReplaceFree v t phi)) = exists_ x phi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_free_in_fastReplaceFree_self
[258, 1]
[290, 10]
tauto
v t x : VarName phi : Formula phi_ih : ¬isFreeIn v phi → fastReplaceFree v t phi = phi h1 : ¬(¬v = x ∧ isFreeIn v phi) ⊢ ¬v = x → fastReplaceFree v t phi = phi
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t x : VarName phi : Formula phi_ih : ¬isFreeIn v phi → fastReplaceFree v t phi = phi h1 : ¬(¬v = x ∧ isFreeIn v phi) ⊢ ¬v = x → fastReplaceFree v t phi = phi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
induction F
F : Formula v t : VarName h1 : ¬occursIn t F ⊢ fastReplaceFree t v (fastReplaceFree v t F) = F
case pred_const_ v t : VarName a✝¹ : PredName a✝ : List VarName h1 : ¬occursIn t (pred_const_ a✝¹ a✝) ⊢ fastReplaceFree t v (fastReplaceFree v t (pred_const_ a✝¹ a✝)) = pred_const_ a✝¹ a✝ case pred_var_ v t : VarName a✝¹ : PredName a✝ : List VarName h1 : ¬occursIn t (pred_var_ a✝¹ a✝) ⊢ fastReplaceFree t v (fastReplac...
Please generate a tactic in lean4 to solve the state. STATE: F : Formula v t : VarName h1 : ¬occursIn t F ⊢ fastReplaceFree t v (fastReplaceFree v t F) = F TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
any_goals simp only [occursIn] at h1 simp only [fastReplaceFree]
case pred_const_ v t : VarName a✝¹ : PredName a✝ : List VarName h1 : ¬occursIn t (pred_const_ a✝¹ a✝) ⊢ fastReplaceFree t v (fastReplaceFree v t (pred_const_ a✝¹ a✝)) = pred_const_ a✝¹ a✝ case pred_var_ v t : VarName a✝¹ : PredName a✝ : List VarName h1 : ¬occursIn t (pred_var_ a✝¹ a✝) ⊢ fastReplaceFree t v (fastReplac...
case pred_const_ v t : VarName a✝¹ : PredName a✝ : List VarName h1 : t ∉ a✝ ⊢ pred_const_ a✝¹ (List.map (fun x => if t = x then v else x) (List.map (fun x => if v = x then t else x) a✝)) = pred_const_ a✝¹ a✝ case pred_var_ v t : VarName a✝¹ : PredName a✝ : List VarName h1 : t ∉ a✝ ⊢ pred_var_ a✝¹ (List.map (fun x ...
Please generate a tactic in lean4 to solve the state. STATE: case pred_const_ v t : VarName a✝¹ : PredName a✝ : List VarName h1 : ¬occursIn t (pred_const_ a✝¹ a✝) ⊢ fastReplaceFree t v (fastReplaceFree v t (pred_const_ a✝¹ a✝)) = pred_const_ a✝¹ a✝ case pred_var_ v t : VarName a✝¹ : PredName a✝ : List VarName h1 : ¬oc...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
case not_ phi phi_ih => congr! exact phi_ih h1
v t : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1 : ¬occursIn t phi ⊢ (fastReplaceFree t v (fastReplaceFree v t phi)).not_ = phi.not_
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1 : ¬occursIn t phi ⊢ (fastReplaceFree t v (fastReplaceFree v t phi)).not_ = phi.not_ TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
case imp_ phi psi phi_ih psi_ih | and_ phi psi phi_ih psi_ih | or_ phi psi phi_ih psi_ih | iff_ phi psi phi_ih psi_ih => congr! <;> tauto
v t : VarName phi psi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi psi_ih : ¬occursIn t psi → fastReplaceFree t v (fastReplaceFree v t psi) = psi h1 : ¬(occursIn t phi ∨ occursIn t psi) ⊢ (fastReplaceFree t v (fastReplaceFree v t phi)).iff_ (fastReplaceFree t v (fastReplaceFr...
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName phi psi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi psi_ih : ¬occursIn t psi → fastReplaceFree t v (fastReplaceFree v t psi) = psi h1 : ¬(occursIn t phi ∨ occursIn t psi) ⊢ (fastReplaceFree t v (fastR...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
case forall_ x phi phi_ih | exists_ x phi phi_ih => push_neg at h1 cases h1 case intro h1_left h1_right => split_ifs case pos c1 => simp only [fastReplaceFree] simp only [if_neg h1_left] congr! apply not_free_in_fastReplaceFree_self contrapose! h1_right exact isFreeIn_i...
v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1 : ¬(t = x ∨ occursIn t phi) ⊢ fastReplaceFree t v (if v = x then exists_ x phi else exists_ x (fastReplaceFree v t phi)) = exists_ x phi
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1 : ¬(t = x ∨ occursIn t phi) ⊢ fastReplaceFree t v (if v = x then exists_ x phi else exists_ x (fastReplaceFree v t phi)) = exists_ x phi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
simp only [occursIn] at h1
case def_ v t : VarName a✝¹ : DefName a✝ : List VarName h1 : ¬occursIn t (def_ a✝¹ a✝) ⊢ fastReplaceFree t v (fastReplaceFree v t (def_ a✝¹ a✝)) = def_ a✝¹ a✝
case def_ v t : VarName a✝¹ : DefName a✝ : List VarName h1 : t ∉ a✝ ⊢ fastReplaceFree t v (fastReplaceFree v t (def_ a✝¹ a✝)) = def_ a✝¹ a✝
Please generate a tactic in lean4 to solve the state. STATE: case def_ v t : VarName a✝¹ : DefName a✝ : List VarName h1 : ¬occursIn t (def_ a✝¹ a✝) ⊢ fastReplaceFree t v (fastReplaceFree v t (def_ a✝¹ a✝)) = def_ a✝¹ a✝ TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
simp only [fastReplaceFree]
case def_ v t : VarName a✝¹ : DefName a✝ : List VarName h1 : t ∉ a✝ ⊢ fastReplaceFree t v (fastReplaceFree v t (def_ a✝¹ a✝)) = def_ a✝¹ a✝
case def_ v t : VarName a✝¹ : DefName a✝ : List VarName h1 : t ∉ a✝ ⊢ def_ a✝¹ (List.map (fun x => if t = x then v else x) (List.map (fun x => if v = x then t else x) a✝)) = def_ a✝¹ a✝
Please generate a tactic in lean4 to solve the state. STATE: case def_ v t : VarName a✝¹ : DefName a✝ : List VarName h1 : t ∉ a✝ ⊢ fastReplaceFree t v (fastReplaceFree v t (def_ a✝¹ a✝)) = def_ a✝¹ a✝ TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
congr!
v t : VarName X : DefName xs : List VarName h1 : t ∉ xs ⊢ def_ X (List.map (fun x => if t = x then v else x) (List.map (fun x => if v = x then t else x) xs)) = def_ X xs
case h.e'_2 v t : VarName X : DefName xs : List VarName h1 : t ∉ xs ⊢ List.map (fun x => if t = x then v else x) (List.map (fun x => if v = x then t else x) xs) = xs
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName X : DefName xs : List VarName h1 : t ∉ xs ⊢ def_ X (List.map (fun x => if t = x then v else x) (List.map (fun x => if v = x then t else x) xs)) = def_ X xs TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
simp
case h.e'_2 v t : VarName X : DefName xs : List VarName h1 : t ∉ xs ⊢ List.map (fun x => if t = x then v else x) (List.map (fun x => if v = x then t else x) xs) = xs
case h.e'_2 v t : VarName X : DefName xs : List VarName h1 : t ∉ xs ⊢ List.map ((fun x => if t = x then v else x) ∘ fun x => if v = x then t else x) xs = xs
Please generate a tactic in lean4 to solve the state. STATE: case h.e'_2 v t : VarName X : DefName xs : List VarName h1 : t ∉ xs ⊢ List.map (fun x => if t = x then v else x) (List.map (fun x => if v = x then t else x) xs) = xs TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
simp only [List.map_eq_self_iff]
case h.e'_2 v t : VarName X : DefName xs : List VarName h1 : t ∉ xs ⊢ List.map ((fun x => if t = x then v else x) ∘ fun x => if v = x then t else x) xs = xs
case h.e'_2 v t : VarName X : DefName xs : List VarName h1 : t ∉ xs ⊢ ∀ x ∈ xs, ((fun x => if t = x then v else x) ∘ fun x => if v = x then t else x) x = x
Please generate a tactic in lean4 to solve the state. STATE: case h.e'_2 v t : VarName X : DefName xs : List VarName h1 : t ∉ xs ⊢ List.map ((fun x => if t = x then v else x) ∘ fun x => if v = x then t else x) xs = xs TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
simp
case h.e'_2 v t : VarName X : DefName xs : List VarName h1 : t ∉ xs ⊢ ∀ x ∈ xs, ((fun x => if t = x then v else x) ∘ fun x => if v = x then t else x) x = x
case h.e'_2 v t : VarName X : DefName xs : List VarName h1 : t ∉ xs ⊢ ∀ x ∈ xs, (if t = if v = x then t else x then v else if v = x then t else x) = x
Please generate a tactic in lean4 to solve the state. STATE: case h.e'_2 v t : VarName X : DefName xs : List VarName h1 : t ∉ xs ⊢ ∀ x ∈ xs, ((fun x => if t = x then v else x) ∘ fun x => if v = x then t else x) x = x TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
intro x a1
case h.e'_2 v t : VarName X : DefName xs : List VarName h1 : t ∉ xs ⊢ ∀ x ∈ xs, (if t = if v = x then t else x then v else if v = x then t else x) = x
case h.e'_2 v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs ⊢ (if t = if v = x then t else x then v else if v = x then t else x) = x
Please generate a tactic in lean4 to solve the state. STATE: case h.e'_2 v t : VarName X : DefName xs : List VarName h1 : t ∉ xs ⊢ ∀ x ∈ xs, (if t = if v = x then t else x then v else if v = x then t else x) = x TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
by_cases c1 : v = x
case h.e'_2 v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs ⊢ (if t = if v = x then t else x then v else if v = x then t else x) = x
case pos v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : v = x ⊢ (if t = if v = x then t else x then v else if v = x then t else x) = x case neg v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : ¬v = x ⊢ (if t = if v = x then t else x then v else ...
Please generate a tactic in lean4 to solve the state. STATE: case h.e'_2 v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs ⊢ (if t = if v = x then t else x then v else if v = x then t else x) = x TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
simp only [if_pos c1]
case pos v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : v = x ⊢ (if t = if v = x then t else x then v else if v = x then t else x) = x
case pos v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : v = x ⊢ (if True then v else t) = x
Please generate a tactic in lean4 to solve the state. STATE: case pos v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : v = x ⊢ (if t = if v = x then t else x then v else if v = x then t else x) = x TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
simp
case pos v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : v = x ⊢ (if True then v else t) = x
case pos v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : v = x ⊢ v = x
Please generate a tactic in lean4 to solve the state. STATE: case pos v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : v = x ⊢ (if True then v else t) = x TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
exact c1
case pos v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : v = x ⊢ v = x
no goals
Please generate a tactic in lean4 to solve the state. STATE: case pos v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : v = x ⊢ v = x TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
simp only [if_neg c1]
case neg v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : ¬v = x ⊢ (if t = if v = x then t else x then v else if v = x then t else x) = x
case neg v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : ¬v = x ⊢ (if t = x then v else x) = x
Please generate a tactic in lean4 to solve the state. STATE: case neg v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : ¬v = x ⊢ (if t = if v = x then t else x then v else if v = x then t else x) = x TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
simp
case neg v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : ¬v = x ⊢ (if t = x then v else x) = x
case neg v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : ¬v = x ⊢ t = x → v = x
Please generate a tactic in lean4 to solve the state. STATE: case neg v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : ¬v = x ⊢ (if t = x then v else x) = x TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
intro a2
case neg v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : ¬v = x ⊢ t = x → v = x
case neg v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : ¬v = x a2 : t = x ⊢ v = x
Please generate a tactic in lean4 to solve the state. STATE: case neg v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : ¬v = x ⊢ t = x → v = x TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
subst a2
case neg v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : ¬v = x a2 : t = x ⊢ v = x
case neg v t : VarName X : DefName xs : List VarName h1 : t ∉ xs a1 : t ∈ xs c1 : ¬v = t ⊢ v = t
Please generate a tactic in lean4 to solve the state. STATE: case neg v t : VarName X : DefName xs : List VarName h1 : t ∉ xs x : VarName a1 : x ∈ xs c1 : ¬v = x a2 : t = x ⊢ v = x TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
contradiction
case neg v t : VarName X : DefName xs : List VarName h1 : t ∉ xs a1 : t ∈ xs c1 : ¬v = t ⊢ v = t
no goals
Please generate a tactic in lean4 to solve the state. STATE: case neg v t : VarName X : DefName xs : List VarName h1 : t ∉ xs a1 : t ∈ xs c1 : ¬v = t ⊢ v = t TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
congr!
v t x y : VarName h1 : ¬(t = x ∨ t = y) ⊢ eq_ (if t = if v = x then t else x then v else if v = x then t else x) (if t = if v = y then t else y then v else if v = y then t else y) = eq_ x y
case h.e'_1 v t x y : VarName h1 : ¬(t = x ∨ t = y) ⊢ (if t = if v = x then t else x then v else if v = x then t else x) = x case h.e'_2 v t x y : VarName h1 : ¬(t = x ∨ t = y) ⊢ (if t = if v = y then t else y then v else if v = y then t else y) = y
Please generate a tactic in lean4 to solve the state. STATE: v t x y : VarName h1 : ¬(t = x ∨ t = y) ⊢ eq_ (if t = if v = x then t else x then v else if v = x then t else x) (if t = if v = y then t else y then v else if v = y then t else y) = eq_ x y TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
split_ifs <;> tauto
case h.e'_1 v t x y : VarName h1 : ¬(t = x ∨ t = y) ⊢ (if t = if v = x then t else x then v else if v = x then t else x) = x
no goals
Please generate a tactic in lean4 to solve the state. STATE: case h.e'_1 v t x y : VarName h1 : ¬(t = x ∨ t = y) ⊢ (if t = if v = x then t else x then v else if v = x then t else x) = x TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
split_ifs <;> tauto
case h.e'_2 v t x y : VarName h1 : ¬(t = x ∨ t = y) ⊢ (if t = if v = y then t else y then v else if v = y then t else y) = y
no goals
Please generate a tactic in lean4 to solve the state. STATE: case h.e'_2 v t x y : VarName h1 : ¬(t = x ∨ t = y) ⊢ (if t = if v = y then t else y then v else if v = y then t else y) = y TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
congr!
v t : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1 : ¬occursIn t phi ⊢ (fastReplaceFree t v (fastReplaceFree v t phi)).not_ = phi.not_
case h.e'_1 v t : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1 : ¬occursIn t phi ⊢ fastReplaceFree t v (fastReplaceFree v t phi) = phi
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1 : ¬occursIn t phi ⊢ (fastReplaceFree t v (fastReplaceFree v t phi)).not_ = phi.not_ TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
exact phi_ih h1
case h.e'_1 v t : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1 : ¬occursIn t phi ⊢ fastReplaceFree t v (fastReplaceFree v t phi) = phi
no goals
Please generate a tactic in lean4 to solve the state. STATE: case h.e'_1 v t : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1 : ¬occursIn t phi ⊢ fastReplaceFree t v (fastReplaceFree v t phi) = phi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
congr! <;> tauto
v t : VarName phi psi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi psi_ih : ¬occursIn t psi → fastReplaceFree t v (fastReplaceFree v t psi) = psi h1 : ¬(occursIn t phi ∨ occursIn t psi) ⊢ (fastReplaceFree t v (fastReplaceFree v t phi)).iff_ (fastReplaceFree t v (fastReplaceFr...
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName phi psi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi psi_ih : ¬occursIn t psi → fastReplaceFree t v (fastReplaceFree v t psi) = psi h1 : ¬(occursIn t phi ∨ occursIn t psi) ⊢ (fastReplaceFree t v (fastR...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
push_neg at h1
v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1 : ¬(t = x ∨ occursIn t phi) ⊢ fastReplaceFree t v (if v = x then exists_ x phi else exists_ x (fastReplaceFree v t phi)) = exists_ x phi
v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1 : t ≠ x ∧ ¬occursIn t phi ⊢ fastReplaceFree t v (if v = x then exists_ x phi else exists_ x (fastReplaceFree v t phi)) = exists_ x phi
Please generate a tactic in lean4 to solve the state. STATE: v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1 : ¬(t = x ∨ occursIn t phi) ⊢ fastReplaceFree t v (if v = x then exists_ x phi else exists_ x (fastReplaceFree v t phi)) = exists_ x phi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
cases h1
v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1 : t ≠ x ∧ ¬occursIn t phi ⊢ fastReplaceFree t v (if v = x then exists_ x phi else exists_ x (fastReplaceFree v t phi)) = exists_ x phi
case intro v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi left✝ : t ≠ x right✝ : ¬occursIn t phi ⊢ fastReplaceFree t v (if v = x then exists_ x phi else exists_ x (fastReplaceFree v t phi)) = exists_ x phi
Please generate a tactic in lean4 to solve the state. STATE: v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1 : t ≠ x ∧ ¬occursIn t phi ⊢ fastReplaceFree t v (if v = x then exists_ x phi else exists_ x (fastReplaceFree v t phi)) = exists_ x phi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
case intro h1_left h1_right => split_ifs case pos c1 => simp only [fastReplaceFree] simp only [if_neg h1_left] congr! apply not_free_in_fastReplaceFree_self contrapose! h1_right exact isFreeIn_imp_occursIn t phi h1_right case neg c1 => simp only [fastReplaceFree] simp only [if_neg ...
v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi ⊢ fastReplaceFree t v (if v = x then exists_ x phi else exists_ x (fastReplaceFree v t phi)) = exists_ x phi
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi ⊢ fastReplaceFree t v (if v = x then exists_ x phi else exists_ x (fastReplaceFree v t phi)) = exists_ x ph...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
split_ifs
v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi ⊢ fastReplaceFree t v (if v = x then exists_ x phi else exists_ x (fastReplaceFree v t phi)) = exists_ x phi
case pos v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi h✝ : v = x ⊢ fastReplaceFree t v (exists_ x phi) = exists_ x phi case neg v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastRe...
Please generate a tactic in lean4 to solve the state. STATE: v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi ⊢ fastReplaceFree t v (if v = x then exists_ x phi else exists_ x (fastReplaceFree v t phi)) = exists_ x ph...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
case pos c1 => simp only [fastReplaceFree] simp only [if_neg h1_left] congr! apply not_free_in_fastReplaceFree_self contrapose! h1_right exact isFreeIn_imp_occursIn t phi h1_right
v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : v = x ⊢ fastReplaceFree t v (exists_ x phi) = exists_ x phi
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : v = x ⊢ fastReplaceFree t v (exists_ x phi) = exists_ x phi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
case neg c1 => simp only [fastReplaceFree] simp only [if_neg h1_left] congr! exact phi_ih h1_right
v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : ¬v = x ⊢ fastReplaceFree t v (exists_ x (fastReplaceFree v t phi)) = exists_ x phi
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : ¬v = x ⊢ fastReplaceFree t v (exists_ x (fastReplaceFree v t phi)) = exists_ x phi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
simp only [fastReplaceFree]
v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : v = x ⊢ fastReplaceFree t v (exists_ x phi) = exists_ x phi
v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : v = x ⊢ (if t = x then exists_ x phi else exists_ x (fastReplaceFree t v phi)) = exists_ x phi
Please generate a tactic in lean4 to solve the state. STATE: v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : v = x ⊢ fastReplaceFree t v (exists_ x phi) = exists_ x phi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
simp only [if_neg h1_left]
v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : v = x ⊢ (if t = x then exists_ x phi else exists_ x (fastReplaceFree t v phi)) = exists_ x phi
v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : v = x ⊢ exists_ x (fastReplaceFree t v phi) = exists_ x phi
Please generate a tactic in lean4 to solve the state. STATE: v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : v = x ⊢ (if t = x then exists_ x phi else exists_ x (fastReplaceFree t v phi)) = exists_ x phi TACTIC:...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
congr!
v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : v = x ⊢ exists_ x (fastReplaceFree t v phi) = exists_ x phi
case h.e'_2 v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : v = x ⊢ fastReplaceFree t v phi = phi
Please generate a tactic in lean4 to solve the state. STATE: v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : v = x ⊢ exists_ x (fastReplaceFree t v phi) = exists_ x phi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
apply not_free_in_fastReplaceFree_self
case h.e'_2 v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : v = x ⊢ fastReplaceFree t v phi = phi
case h.e'_2.h1 v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : v = x ⊢ ¬isFreeIn t phi
Please generate a tactic in lean4 to solve the state. STATE: case h.e'_2 v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : v = x ⊢ fastReplaceFree t v phi = phi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
contrapose! h1_right
case h.e'_2.h1 v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : v = x ⊢ ¬isFreeIn t phi
case h.e'_2.h1 v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x c1 : v = x h1_right : isFreeIn t phi ⊢ occursIn t phi
Please generate a tactic in lean4 to solve the state. STATE: case h.e'_2.h1 v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : v = x ⊢ ¬isFreeIn t phi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
exact isFreeIn_imp_occursIn t phi h1_right
case h.e'_2.h1 v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x c1 : v = x h1_right : isFreeIn t phi ⊢ occursIn t phi
no goals
Please generate a tactic in lean4 to solve the state. STATE: case h.e'_2.h1 v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x c1 : v = x h1_right : isFreeIn t phi ⊢ occursIn t phi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
simp only [fastReplaceFree]
v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : ¬v = x ⊢ fastReplaceFree t v (exists_ x (fastReplaceFree v t phi)) = exists_ x phi
v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : ¬v = x ⊢ (if t = x then exists_ x (fastReplaceFree v t phi) else exists_ x (fastReplaceFree t v (fastReplaceFree v t phi))) = exists_ x phi
Please generate a tactic in lean4 to solve the state. STATE: v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : ¬v = x ⊢ fastReplaceFree t v (exists_ x (fastReplaceFree v t phi)) = exists_ x phi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
simp only [if_neg h1_left]
v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : ¬v = x ⊢ (if t = x then exists_ x (fastReplaceFree v t phi) else exists_ x (fastReplaceFree t v (fastReplaceFree v t phi))) = exists_ x phi
v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : ¬v = x ⊢ exists_ x (fastReplaceFree t v (fastReplaceFree v t phi)) = exists_ x phi
Please generate a tactic in lean4 to solve the state. STATE: v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : ¬v = x ⊢ (if t = x then exists_ x (fastReplaceFree v t phi) else exists_ x (fastReplaceFree t v (fastR...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
congr!
v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : ¬v = x ⊢ exists_ x (fastReplaceFree t v (fastReplaceFree v t phi)) = exists_ x phi
case h.e'_2 v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : ¬v = x ⊢ fastReplaceFree t v (fastReplaceFree v t phi) = phi
Please generate a tactic in lean4 to solve the state. STATE: v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : ¬v = x ⊢ exists_ x (fastReplaceFree t v (fastReplaceFree v t phi)) = exists_ x phi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.fastReplaceFree_inverse
[293, 1]
[349, 30]
exact phi_ih h1_right
case h.e'_2 v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : ¬v = x ⊢ fastReplaceFree t v (fastReplaceFree v t phi) = phi
no goals
Please generate a tactic in lean4 to solve the state. STATE: case h.e'_2 v t x : VarName phi : Formula phi_ih : ¬occursIn t phi → fastReplaceFree t v (fastReplaceFree v t phi) = phi h1_left : t ≠ x h1_right : ¬occursIn t phi c1 : ¬v = x ⊢ fastReplaceFree t v (fastReplaceFree v t phi) = phi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
induction F
F : Formula v t : VarName h1 : ¬v = t ⊢ ¬isFreeIn v (fastReplaceFree v t F)
case pred_const_ v t : VarName h1 : ¬v = t a✝¹ : PredName a✝ : List VarName ⊢ ¬isFreeIn v (fastReplaceFree v t (pred_const_ a✝¹ a✝)) case pred_var_ v t : VarName h1 : ¬v = t a✝¹ : PredName a✝ : List VarName ⊢ ¬isFreeIn v (fastReplaceFree v t (pred_var_ a✝¹ a✝)) case eq_ v t : VarName h1 : ¬v = t a✝¹ a✝ : VarName ⊢ ¬i...
Please generate a tactic in lean4 to solve the state. STATE: F : Formula v t : VarName h1 : ¬v = t ⊢ ¬isFreeIn v (fastReplaceFree v t F) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
any_goals simp only [fastReplaceFree] simp only [isFreeIn]
case pred_const_ v t : VarName h1 : ¬v = t a✝¹ : PredName a✝ : List VarName ⊢ ¬isFreeIn v (fastReplaceFree v t (pred_const_ a✝¹ a✝)) case pred_var_ v t : VarName h1 : ¬v = t a✝¹ : PredName a✝ : List VarName ⊢ ¬isFreeIn v (fastReplaceFree v t (pred_var_ a✝¹ a✝)) case eq_ v t : VarName h1 : ¬v = t a✝¹ a✝ : VarName ⊢ ¬i...
case pred_const_ v t : VarName h1 : ¬v = t a✝¹ : PredName a✝ : List VarName ⊢ v ∉ List.map (fun x => if v = x then t else x) a✝ case pred_var_ v t : VarName h1 : ¬v = t a✝¹ : PredName a✝ : List VarName ⊢ v ∉ List.map (fun x => if v = x then t else x) a✝ case eq_ v t : VarName h1 : ¬v = t a✝¹ a✝ : VarName ⊢ ¬((v = if ...
Please generate a tactic in lean4 to solve the state. STATE: case pred_const_ v t : VarName h1 : ¬v = t a✝¹ : PredName a✝ : List VarName ⊢ ¬isFreeIn v (fastReplaceFree v t (pred_const_ a✝¹ a✝)) case pred_var_ v t : VarName h1 : ¬v = t a✝¹ : PredName a✝ : List VarName ⊢ ¬isFreeIn v (fastReplaceFree v t (pred_var_ a✝¹ a...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
case pred_const_ X xs | pred_var_ X xs | def_ X xs => simp intro x split_ifs <;> tauto
v t : VarName h1 : ¬v = t X : DefName xs : List VarName ⊢ v ∉ List.map (fun x => if v = x then t else x) xs
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t X : DefName xs : List VarName ⊢ v ∉ List.map (fun x => if v = x then t else x) xs TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
case eq_ x y => split_ifs <;> tauto
v t : VarName h1 : ¬v = t x y : VarName ⊢ ¬((v = if v = x then t else x) ∨ v = if v = y then t else y)
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t x y : VarName ⊢ ¬((v = if v = x then t else x) ∨ v = if v = y then t else y) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
case true_ | false_ => simp
v t : VarName h1 : ¬v = t ⊢ ¬False
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t ⊢ ¬False TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
case not_ phi phi_ih => exact phi_ih
v t : VarName h1 : ¬v = t phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) ⊢ ¬isFreeIn v (fastReplaceFree v t phi)
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) ⊢ ¬isFreeIn v (fastReplaceFree v t phi) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
case imp_ phi psi phi_ih psi_ih | and_ phi psi phi_ih psi_ih | or_ phi psi phi_ih psi_ih | iff_ phi psi phi_ih psi_ih => tauto
v t : VarName h1 : ¬v = t phi psi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) psi_ih : ¬isFreeIn v (fastReplaceFree v t psi) ⊢ ¬(isFreeIn v (fastReplaceFree v t phi) ∨ isFreeIn v (fastReplaceFree v t psi))
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t phi psi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) psi_ih : ¬isFreeIn v (fastReplaceFree v t psi) ⊢ ¬(isFreeIn v (fastReplaceFree v t phi) ∨ isFreeIn v (fastReplaceFree v t psi)) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
case forall_ x phi phi_ih | exists_ x phi phi_ih => simp only [fastReplaceFree] split_ifs case pos c1 => simp only [isFreeIn] simp intro a1 contradiction case neg c1 => simp only [isFreeIn] simp intro _ exact phi_ih
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) ⊢ ¬isFreeIn v (fastReplaceFree v t (exists_ x phi))
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) ⊢ ¬isFreeIn v (fastReplaceFree v t (exists_ x phi)) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
simp only [fastReplaceFree]
case def_ v t : VarName h1 : ¬v = t a✝¹ : DefName a✝ : List VarName ⊢ ¬isFreeIn v (fastReplaceFree v t (def_ a✝¹ a✝))
case def_ v t : VarName h1 : ¬v = t a✝¹ : DefName a✝ : List VarName ⊢ ¬isFreeIn v (def_ a✝¹ (List.map (fun x => if v = x then t else x) a✝))
Please generate a tactic in lean4 to solve the state. STATE: case def_ v t : VarName h1 : ¬v = t a✝¹ : DefName a✝ : List VarName ⊢ ¬isFreeIn v (fastReplaceFree v t (def_ a✝¹ a✝)) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
simp only [isFreeIn]
case def_ v t : VarName h1 : ¬v = t a✝¹ : DefName a✝ : List VarName ⊢ ¬isFreeIn v (def_ a✝¹ (List.map (fun x => if v = x then t else x) a✝))
case def_ v t : VarName h1 : ¬v = t a✝¹ : DefName a✝ : List VarName ⊢ v ∉ List.map (fun x => if v = x then t else x) a✝
Please generate a tactic in lean4 to solve the state. STATE: case def_ v t : VarName h1 : ¬v = t a✝¹ : DefName a✝ : List VarName ⊢ ¬isFreeIn v (def_ a✝¹ (List.map (fun x => if v = x then t else x) a✝)) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
simp
v t : VarName h1 : ¬v = t X : DefName xs : List VarName ⊢ v ∉ List.map (fun x => if v = x then t else x) xs
v t : VarName h1 : ¬v = t X : DefName xs : List VarName ⊢ ∀ x ∈ xs, ¬(if v = x then t else x) = v
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t X : DefName xs : List VarName ⊢ v ∉ List.map (fun x => if v = x then t else x) xs TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
intro x
v t : VarName h1 : ¬v = t X : DefName xs : List VarName ⊢ ∀ x ∈ xs, ¬(if v = x then t else x) = v
v t : VarName h1 : ¬v = t X : DefName xs : List VarName x : VarName ⊢ x ∈ xs → ¬(if v = x then t else x) = v
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t X : DefName xs : List VarName ⊢ ∀ x ∈ xs, ¬(if v = x then t else x) = v TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
split_ifs <;> tauto
v t : VarName h1 : ¬v = t X : DefName xs : List VarName x : VarName ⊢ x ∈ xs → ¬(if v = x then t else x) = v
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t X : DefName xs : List VarName x : VarName ⊢ x ∈ xs → ¬(if v = x then t else x) = v TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
split_ifs <;> tauto
v t : VarName h1 : ¬v = t x y : VarName ⊢ ¬((v = if v = x then t else x) ∨ v = if v = y then t else y)
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t x y : VarName ⊢ ¬((v = if v = x then t else x) ∨ v = if v = y then t else y) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
simp
v t : VarName h1 : ¬v = t ⊢ ¬False
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t ⊢ ¬False TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
exact phi_ih
v t : VarName h1 : ¬v = t phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) ⊢ ¬isFreeIn v (fastReplaceFree v t phi)
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) ⊢ ¬isFreeIn v (fastReplaceFree v t phi) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
tauto
v t : VarName h1 : ¬v = t phi psi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) psi_ih : ¬isFreeIn v (fastReplaceFree v t psi) ⊢ ¬(isFreeIn v (fastReplaceFree v t phi) ∨ isFreeIn v (fastReplaceFree v t psi))
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t phi psi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) psi_ih : ¬isFreeIn v (fastReplaceFree v t psi) ⊢ ¬(isFreeIn v (fastReplaceFree v t phi) ∨ isFreeIn v (fastReplaceFree v t psi)) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
simp only [fastReplaceFree]
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) ⊢ ¬isFreeIn v (fastReplaceFree v t (exists_ x phi))
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) ⊢ ¬isFreeIn v (if v = x then exists_ x phi else exists_ x (fastReplaceFree v t phi))
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) ⊢ ¬isFreeIn v (fastReplaceFree v t (exists_ x phi)) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
split_ifs
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) ⊢ ¬isFreeIn v (if v = x then exists_ x phi else exists_ x (fastReplaceFree v t phi))
case pos v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) h✝ : v = x ⊢ ¬isFreeIn v (exists_ x phi) case neg v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) h✝ : ¬v = x ⊢ ¬isFreeIn v (exists_ x (fastReplaceFree v t phi)...
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) ⊢ ¬isFreeIn v (if v = x then exists_ x phi else exists_ x (fastReplaceFree v t phi)) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
case pos c1 => simp only [isFreeIn] simp intro a1 contradiction
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : v = x ⊢ ¬isFreeIn v (exists_ x phi)
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : v = x ⊢ ¬isFreeIn v (exists_ x phi) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
case neg c1 => simp only [isFreeIn] simp intro _ exact phi_ih
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : ¬v = x ⊢ ¬isFreeIn v (exists_ x (fastReplaceFree v t phi))
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : ¬v = x ⊢ ¬isFreeIn v (exists_ x (fastReplaceFree v t phi)) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
simp only [isFreeIn]
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : v = x ⊢ ¬isFreeIn v (exists_ x phi)
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : v = x ⊢ ¬(¬v = x ∧ isFreeIn v phi)
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : v = x ⊢ ¬isFreeIn v (exists_ x phi) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
simp
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : v = x ⊢ ¬(¬v = x ∧ isFreeIn v phi)
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : v = x ⊢ ¬v = x → ¬isFreeIn v phi
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : v = x ⊢ ¬(¬v = x ∧ isFreeIn v phi) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
intro a1
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : v = x ⊢ ¬v = x → ¬isFreeIn v phi
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : v = x a1 : ¬v = x ⊢ ¬isFreeIn v phi
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : v = x ⊢ ¬v = x → ¬isFreeIn v phi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
contradiction
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : v = x a1 : ¬v = x ⊢ ¬isFreeIn v phi
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : v = x a1 : ¬v = x ⊢ ¬isFreeIn v phi TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
simp only [isFreeIn]
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : ¬v = x ⊢ ¬isFreeIn v (exists_ x (fastReplaceFree v t phi))
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : ¬v = x ⊢ ¬(¬v = x ∧ isFreeIn v (fastReplaceFree v t phi))
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : ¬v = x ⊢ ¬isFreeIn v (exists_ x (fastReplaceFree v t phi)) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
simp
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : ¬v = x ⊢ ¬(¬v = x ∧ isFreeIn v (fastReplaceFree v t phi))
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : ¬v = x ⊢ ¬v = x → ¬isFreeIn v (fastReplaceFree v t phi)
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : ¬v = x ⊢ ¬(¬v = x ∧ isFreeIn v (fastReplaceFree v t phi)) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
intro _
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : ¬v = x ⊢ ¬v = x → ¬isFreeIn v (fastReplaceFree v t phi)
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 a✝ : ¬v = x ⊢ ¬isFreeIn v (fastReplaceFree v t phi)
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 : ¬v = x ⊢ ¬v = x → ¬isFreeIn v (fastReplaceFree v t phi) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/One/Rec/ReplaceFree.lean
FOL.NV.Sub.Var.One.Rec.not_isFreeIn_fastReplaceFree
[352, 1]
[390, 19]
exact phi_ih
v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 a✝ : ¬v = x ⊢ ¬isFreeIn v (fastReplaceFree v t phi)
no goals
Please generate a tactic in lean4 to solve the state. STATE: v t : VarName h1 : ¬v = t x : VarName phi : Formula phi_ih : ¬isFreeIn v (fastReplaceFree v t phi) c1 a✝ : ¬v = x ⊢ ¬isFreeIn v (fastReplaceFree v t phi) TACTIC:
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/All/Rec/Admits.lean
FOL.NV.Sub.Var.All.Rec.substitution_theorem_aux
[74, 1]
[207, 28]
induction E generalizing F binders V V' σ σ'
D : Type I : Interpretation D V V' : VarAssignment D E : Env σ σ' : VarName → VarName binders : Finset VarName F : Formula h1 : admitsAux σ binders F h2 : ∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v) h2' : ∀ v ∈ binders, v = σ' v h3 : ∀ v ∉ binders, σ' v = σ v ⊢ Holds D I V E F ↔ Holds D I V' E (fast...
case nil D : Type I : Interpretation D V V' : VarAssignment D σ σ' : VarName → VarName binders : Finset VarName F : Formula h1 : admitsAux σ binders F h2 : ∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v) h2' : ∀ v ∈ binders, v = σ' v h3 : ∀ v ∉ binders, σ' v = σ v ⊢ Holds D I V [] F ↔ Holds D I V' [] (f...
Please generate a tactic in lean4 to solve the state. STATE: D : Type I : Interpretation D V V' : VarAssignment D E : Env σ σ' : VarName → VarName binders : Finset VarName F : Formula h1 : admitsAux σ binders F h2 : ∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v) h2' : ∀ v ∈ binders, v = σ' v h3 : ∀ v ∉...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/All/Rec/Admits.lean
FOL.NV.Sub.Var.All.Rec.substitution_theorem_aux
[74, 1]
[207, 28]
induction F generalizing binders V V' σ σ'
case cons D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binders, v ...
case cons.pred_const_ D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈...
Please generate a tactic in lean4 to solve the state. STATE: case cons D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/All/Rec/Admits.lean
FOL.NV.Sub.Var.All.Rec.substitution_theorem_aux
[74, 1]
[207, 28]
all_goals simp only [admitsAux] at h1 simp only [fastReplaceFree] simp only [Holds]
case cons.pred_const_ D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈...
case cons.pred_const_ D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈...
Please generate a tactic in lean4 to solve the state. STATE: case cons.pred_const_ D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/All/Rec/Admits.lean
FOL.NV.Sub.Var.All.Rec.substitution_theorem_aux
[74, 1]
[207, 28]
case not_ phi phi_ih => congr! 1 exact phi_ih V V' σ σ' binders h1 h2 h2' h3
D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binders, v = σ' v) → ...
no goals
Please generate a tactic in lean4 to solve the state. STATE: D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ bind...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/All/Rec/Admits.lean
FOL.NV.Sub.Var.All.Rec.substitution_theorem_aux
[74, 1]
[207, 28]
simp only [admitsAux] at h1
case cons.def_ D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binder...
case cons.def_ D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binder...
Please generate a tactic in lean4 to solve the state. STATE: case cons.def_ D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binder...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/All/Rec/Admits.lean
FOL.NV.Sub.Var.All.Rec.substitution_theorem_aux
[74, 1]
[207, 28]
simp only [fastReplaceFree]
case cons.def_ D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binder...
case cons.def_ D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binder...
Please generate a tactic in lean4 to solve the state. STATE: case cons.def_ D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binder...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/All/Rec/Admits.lean
FOL.NV.Sub.Var.All.Rec.substitution_theorem_aux
[74, 1]
[207, 28]
simp only [Holds]
case cons.def_ D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binder...
case cons.def_ D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binder...
Please generate a tactic in lean4 to solve the state. STATE: case cons.def_ D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binder...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/All/Rec/Admits.lean
FOL.NV.Sub.Var.All.Rec.substitution_theorem_aux
[74, 1]
[207, 28]
congr! 1
D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binders, v = σ' v) → ...
case a.h.e'_4 D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binders...
Please generate a tactic in lean4 to solve the state. STATE: D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ bind...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/All/Rec/Admits.lean
FOL.NV.Sub.Var.All.Rec.substitution_theorem_aux
[74, 1]
[207, 28]
simp
case a.h.e'_4 D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binders...
case a.h.e'_4 D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binders...
Please generate a tactic in lean4 to solve the state. STATE: case a.h.e'_4 D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/All/Rec/Admits.lean
FOL.NV.Sub.Var.All.Rec.substitution_theorem_aux
[74, 1]
[207, 28]
simp only [List.map_eq_map_iff]
case a.h.e'_4 D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binders...
case a.h.e'_4 D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binders...
Please generate a tactic in lean4 to solve the state. STATE: case a.h.e'_4 D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/All/Rec/Admits.lean
FOL.NV.Sub.Var.All.Rec.substitution_theorem_aux
[74, 1]
[207, 28]
intro v a1
case a.h.e'_4 D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binders...
case a.h.e'_4 D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binders...
Please generate a tactic in lean4 to solve the state. STATE: case a.h.e'_4 D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/All/Rec/Admits.lean
FOL.NV.Sub.Var.All.Rec.substitution_theorem_aux
[74, 1]
[207, 28]
apply h2
case a.h.e'_4 D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binders...
case a.h.e'_4.a D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binde...
Please generate a tactic in lean4 to solve the state. STATE: case a.h.e'_4 D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/All/Rec/Admits.lean
FOL.NV.Sub.Var.All.Rec.substitution_theorem_aux
[74, 1]
[207, 28]
by_cases c1 : v ∈ binders
case a.h.e'_4.a D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binde...
case pos D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binders, v =...
Please generate a tactic in lean4 to solve the state. STATE: case a.h.e'_4.a D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binde...
https://github.com/pthomas505/FOL.git
097a4abea51b641d144539b9a0f7516f3b9d818c
FOL/NV/Sub/Var/All/Rec/Admits.lean
FOL.NV.Sub.Var.All.Rec.substitution_theorem_aux
[74, 1]
[207, 28]
left
case pos D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binders, v =...
case pos.h D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ' v ∉ binders → V v = V' (σ' v)) → (∀ v ∈ binders, v...
Please generate a tactic in lean4 to solve the state. STATE: case pos D : Type I : Interpretation D head✝ : Definition tail✝ : List Definition tail_ih✝ : ∀ (V V' : VarAssignment D) (σ σ' : VarName → VarName) (binders : Finset VarName) (F : Formula), admitsAux σ binders F → (∀ (v : VarName), v ∈ binders ∨ σ'...