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https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₁
[30, 1]
[48, 19]
have : 𝓓 ⊢! (p :: Γ).conj' ⟶ Δ.disj' := implyLeft_cons_conj'!.mpr hC
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : (𝓓)-Consistent (insert p T, U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj' this : 𝓓 ⊬! (p :: Γ).conj' ⟶ Δ.disj' ⊢ False
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : (𝓓)-Consistent (insert p T, U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj' this✝ : 𝓓 ⊬! (p :: Γ).conj' ⟶ Δ.disj' this : ...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₁
[30, 1]
[48, 19]
contradiction
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : (𝓓)-Consistent (insert p T, U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj' this✝ : 𝓓 ⊬! (p :: Γ).conj' ⟶ Δ.disj' this : ...
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₁
[30, 1]
[48, 19]
simp
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : (𝓓)-Consistent (insert p T, U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj' ⊢ ∀ p_1 ∈ p :: Γ, p_1 ∈ (insert p T, U).1
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : (𝓓)-Consistent (insert p T, U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj' ⊢ ∀ a ∈ Γ, a = p ∨ a ∈ T
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₁
[30, 1]
[48, 19]
intro q hq
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : (𝓓)-Consistent (insert p T, U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj' ⊢ ∀ a ∈ Γ, a = p ∨ a ∈ T
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : (𝓓)-Consistent (insert p T, U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj' q : Formula α hq : q ∈ Γ ⊢ q = p ∨ q ∈ T
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₁
[30, 1]
[48, 19]
right
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : (𝓓)-Consistent (insert p T, U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj' q : Formula α hq : q ∈ Γ ⊢ q = p ∨ q ∈ T
case h α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : (𝓓)-Consistent (insert p T, U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj' q : Formula α hq : q ∈ Γ ⊢ q ∈ T
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₁
[30, 1]
[48, 19]
exact hΓ q hq
case h α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : (𝓓)-Consistent (insert p T, U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj' q : Formula α hq : q ∈ Γ ⊢ q ∈ T
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₁
[30, 1]
[48, 19]
intro h Γ Δ hΓ hΔ
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α ⊢ (∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj') → (𝓓)-Consistent (insert p T, U)
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 ∈ (insert p T, U).1 hΔ : ∀ p_1 ∈ Δ, ...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₁
[30, 1]
[48, 19]
simp_all only [Set.mem_insert_iff]
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 ∈ (insert p T, U).1 hΔ : ∀ p_1 ∈ Δ, ...
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 = p ∨ p_1 ∈ T hΔ : ∀ p ∈ Δ, p ∈ U ⊢ ...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₁
[30, 1]
[48, 19]
have : 𝓓 ⊬! p ⋏ (Γ.remove p).conj' ⟶ Δ.disj' := h (by intro q hq; have := by simpa using hΓ q $ List.mem_of_mem_remove hq; cases this with | inl h => simpa [h] using List.mem_remove_iff.mp hq; | inr h => assumption; ) hΔ
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 = p ∨ p_1 ∈ T hΔ : ∀ p ∈ Δ, p ∈ U ⊢ ...
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 = p ∨ p_1 ∈ T hΔ : ∀ p ∈ Δ, p ∈ U th...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₁
[30, 1]
[48, 19]
by_contra hC
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 = p ∨ p_1 ∈ T hΔ : ∀ p ∈ Δ, p ∈ U th...
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 = p ∨ p_1 ∈ T hΔ : ∀ p ∈ Δ, p ∈ U th...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₁
[30, 1]
[48, 19]
have : 𝓓 ⊢! p ⋏ (Γ.remove p).conj' ⟶ Δ.disj' := imp_trans! andComm! $ implyLeftRemoveConj' (p := p) hC
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 = p ∨ p_1 ∈ T hΔ : ∀ p ∈ Δ, p ∈ U th...
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 = p ∨ p_1 ∈ T hΔ : ∀ p ∈ Δ, p ∈ U th...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₁
[30, 1]
[48, 19]
contradiction
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 = p ∨ p_1 ∈ T hΔ : ∀ p ∈ Δ, p ∈ U th...
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₁
[30, 1]
[48, 19]
intro q hq
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 = p ∨ p_1 ∈ T hΔ : ∀ p ∈ Δ, p ∈ U ⊢ ∀ p_1 ∈ L...
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 = p ∨ p_1 ∈ T hΔ : ∀ p ∈ Δ, p ∈ U q : Formula...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₁
[30, 1]
[48, 19]
have := by simpa using hΓ q $ List.mem_of_mem_remove hq;
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 = p ∨ p_1 ∈ T hΔ : ∀ p ∈ Δ, p ∈ U q : Formula...
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 = p ∨ p_1 ∈ T hΔ : ∀ p ∈ Δ, p ∈ U q : Formula...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₁
[30, 1]
[48, 19]
cases this with | inl h => simpa [h] using List.mem_remove_iff.mp hq; | inr h => assumption;
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 = p ∨ p_1 ∈ T hΔ : ∀ p ∈ Δ, p ∈ U q : Formula...
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₁
[30, 1]
[48, 19]
simpa using hΓ q $ List.mem_of_mem_remove hq
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 = p ∨ p_1 ∈ T hΔ : ∀ p ∈ Δ, p ∈ U q : Formula...
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₁
[30, 1]
[48, 19]
simpa [h] using List.mem_remove_iff.mp hq
case inl α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h✝ : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 = p ∨ p_1 ∈ T hΔ : ∀ p ∈ Δ, p ∈ U q...
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₁
[30, 1]
[48, 19]
assumption
case inr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α h✝ : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! p ⋏ Γ.conj' ⟶ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 = p ∨ p_1 ∈ T hΔ : ∀ p ∈ Δ, p ∈ U q...
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_not_ParametricConsistent_insert₁
[50, 1]
[53, 69]
constructor
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α ⊢ ¬(𝓓)-Consistent (insert p T, U) ↔ ∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj'
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α ⊢ ¬(𝓓)-Consistent (insert p T, U) → ∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj' case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α �...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_not_ParametricConsistent_insert₁
[50, 1]
[53, 69]
. contrapose; push_neg; apply iff_ParametricConsistent_insert₁.mpr;
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α ⊢ ¬(𝓓)-Consistent (insert p T, U) → ∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj' case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α �...
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α ⊢ (∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj') → ¬(𝓓)-Consistent (insert p T, U)
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_not_ParametricConsistent_insert₁
[50, 1]
[53, 69]
. contrapose; push_neg; apply iff_ParametricConsistent_insert₁.mp;
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α ⊢ (∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj') → ¬(𝓓)-Consistent (insert p T, U)
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_not_ParametricConsistent_insert₁
[50, 1]
[53, 69]
contrapose
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α ⊢ ¬(𝓓)-Consistent (insert p T, U) → ∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj'
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α ⊢ (¬∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj') → ¬¬(𝓓)-Consistent (insert p T, U)
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_not_ParametricConsistent_insert₁
[50, 1]
[53, 69]
push_neg
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α ⊢ (¬∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj') → ¬¬(𝓓)-Consistent (insert p T, U)
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α ⊢ (∀ (Γ Δ : List (Formula α)), (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → ¬𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj') → (𝓓)-Consistent (insert p T, U)
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_not_ParametricConsistent_insert₁
[50, 1]
[53, 69]
apply iff_ParametricConsistent_insert₁.mpr
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α ⊢ (∀ (Γ Δ : List (Formula α)), (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → ¬𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj') → (𝓓)-Consistent (insert p T, U)
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_not_ParametricConsistent_insert₁
[50, 1]
[53, 69]
contrapose
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α ⊢ (∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj') → ¬(𝓓)-Consistent (insert p T, U)
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α ⊢ ¬¬(𝓓)-Consistent (insert p T, U) → ¬∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj'
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_not_ParametricConsistent_insert₁
[50, 1]
[53, 69]
push_neg
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α ⊢ ¬¬(𝓓)-Consistent (insert p T, U) → ¬∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj'
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α ⊢ (𝓓)-Consistent (insert p T, U) → ∀ (Γ Δ : List (Formula α)), (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → ¬𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj'
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_not_ParametricConsistent_insert₁
[50, 1]
[53, 69]
apply iff_ParametricConsistent_insert₁.mp
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ p : Formula α T U : Theory α ⊢ (𝓓)-Consistent (insert p T, U) → ∀ (Γ Δ : List (Formula α)), (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → ¬𝓓 ⊢! p ⋏ Γ.conj' ⟶ Δ.disj'
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
constructor
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ (𝓓)-Consistent (T, insert p U) ↔ ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj'
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ (𝓓)-Consistent (T, insert p U) → ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' case mpr α : Type u_1 inst✝² : D...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
. intro h Γ Δ hΓ hΔ; by_contra hC; have : 𝓓 ⊬! Γ.conj' ⟶ (p :: Δ).disj' := h hΓ (by simp; intro q hq; right; exact hΔ q hq); have : 𝓓 ⊢! Γ.conj' ⟶ (p :: Δ).disj' := implyRight_cons_disj'!.mpr hC; contradiction;
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ (𝓓)-Consistent (T, insert p U) → ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' case mpr α : Type u_1 inst✝² : D...
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ (∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj') → (𝓓)-Consistent (T, insert p U)
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
. intro h Γ Δ hΓ hΔ; simp_all; have : 𝓓 ⊬! Γ.conj' ⟶ p ⋎ (Δ.remove p).disj' := h hΓ (by intro q hq; have := by simpa using hΔ q $ List.mem_of_mem_remove hq; cases this with | inl h => simpa [h] using List.mem_remove_iff.mp hq; | inr h => assumption; ); by_contra hC; have : 𝓓 ⊢! Γ.conj' ⟶...
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ (∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj') → (𝓓)-Consistent (T, insert p U)
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
intro h Γ Δ hΓ hΔ
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ (𝓓)-Consistent (T, insert p U) → ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj'
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : (𝓓)-Consistent (T, insert p U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U ⊢ 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj'
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
by_contra hC
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : (𝓓)-Consistent (T, insert p U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U ⊢ 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj'
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : (𝓓)-Consistent (T, insert p U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj' ⊢ False
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
have : 𝓓 ⊬! Γ.conj' ⟶ (p :: Δ).disj' := h hΓ (by simp; intro q hq; right; exact hΔ q hq)
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : (𝓓)-Consistent (T, insert p U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj' ⊢ False
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : (𝓓)-Consistent (T, insert p U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj' this : 𝓓 ⊬! Γ.conj' ⟶ (p :: Δ).dis...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
have : 𝓓 ⊢! Γ.conj' ⟶ (p :: Δ).disj' := implyRight_cons_disj'!.mpr hC
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : (𝓓)-Consistent (T, insert p U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj' this : 𝓓 ⊬! Γ.conj' ⟶ (p :: Δ).dis...
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : (𝓓)-Consistent (T, insert p U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj' this✝ : 𝓓 ⊬! Γ.conj' ⟶ (p :: Δ).di...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
contradiction
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : (𝓓)-Consistent (T, insert p U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj' this✝ : 𝓓 ⊬! Γ.conj' ⟶ (p :: Δ).di...
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
simp
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : (𝓓)-Consistent (T, insert p U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj' ⊢ ∀ p_1 ∈ p :: Δ, p_1 ∈ (T, insert p U).2
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : (𝓓)-Consistent (T, insert p U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj' ⊢ ∀ a ∈ Δ, a = p ∨ a ∈ U
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
intro q hq
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : (𝓓)-Consistent (T, insert p U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj' ⊢ ∀ a ∈ Δ, a = p ∨ a ∈ U
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : (𝓓)-Consistent (T, insert p U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj' q : Formula α hq : q ∈ Δ ⊢ q = p ∨ q ∈ U
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
right
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : (𝓓)-Consistent (T, insert p U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj' q : Formula α hq : q ∈ Δ ⊢ q = p ∨ q ∈ U
case h α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : (𝓓)-Consistent (T, insert p U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj' q : Formula α hq : q ∈ Δ ⊢ q ∈ U
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
exact hΔ q hq
case h α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : (𝓓)-Consistent (T, insert p U) Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p ∈ Δ, p ∈ U hC : 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj' q : Formula α hq : q ∈ Δ ⊢ q ∈ U
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
intro h Γ Δ hΓ hΔ
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ (∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj') → (𝓓)-Consistent (T, insert p U)
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 ∈ (T, insert p U).1 hΔ : ...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
simp_all
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p_1 ∈ Γ, p_1 ∈ (T, insert p U).1 hΔ : ...
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p_1 ∈ Δ, p_1 = p ∨...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
have : 𝓓 ⊬! Γ.conj' ⟶ p ⋎ (Δ.remove p).disj' := h hΓ (by intro q hq; have := by simpa using hΔ q $ List.mem_of_mem_remove hq; cases this with | inl h => simpa [h] using List.mem_remove_iff.mp hq; | inr h => assumption; )
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p_1 ∈ Δ, p_1 = p ∨...
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p_1 ∈ Δ, p_1 = p ∨...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
by_contra hC
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p_1 ∈ Δ, p_1 = p ∨...
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p_1 ∈ Δ, p_1 = p ∨...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
have : 𝓓 ⊢! Γ.conj' ⟶ p ⋎ (Δ.remove p).disj' := imp_trans! hC $ forthback_disj'_remove
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p_1 ∈ Δ, p_1 = p ∨...
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p_1 ∈ Δ, p_1 = p ∨...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
contradiction
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p_1 ∈ Δ, p_1 = p ∨...
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
intro q hq
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p_1 ∈ Δ, p_1 = p ∨ p_1 ∈ U ...
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p_1 ∈ Δ, p_1 = p ∨ p_1 ∈ U ...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
have := by simpa using hΔ q $ List.mem_of_mem_remove hq;
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p_1 ∈ Δ, p_1 = p ∨ p_1 ∈ U ...
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p_1 ∈ Δ, p_1 = p ∨ p_1 ∈ U ...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
cases this with | inl h => simpa [h] using List.mem_remove_iff.mp hq; | inr h => assumption;
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p_1 ∈ Δ, p_1 = p ∨ p_1 ∈ U ...
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
simpa using hΔ q $ List.mem_of_mem_remove hq
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p_1 ∈ Δ, p_1 = p ∨ p_1 ∈ U ...
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
simpa [h] using List.mem_remove_iff.mp hq
case inl α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h✝ : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p_1 ∈ Δ, p_1 = p ...
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_ParametricConsistent_insert₂
[55, 1]
[73, 19]
assumption
case inr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α h✝ : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → 𝓓 ⊬! Γ.conj' ⟶ p ⋎ Δ.disj' Γ Δ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ T hΔ : ∀ p_1 ∈ Δ, p_1 = p ...
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_not_ParametricConsistent_insert₂
[76, 1]
[79, 69]
constructor
α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ ¬(𝓓)-Consistent (T, insert p U) ↔ ∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj'
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ ¬(𝓓)-Consistent (T, insert p U) → ∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj' case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : In...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_not_ParametricConsistent_insert₂
[76, 1]
[79, 69]
. contrapose; push_neg; apply iff_ParametricConsistent_insert₂.mpr;
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ ¬(𝓓)-Consistent (T, insert p U) → ∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj' case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : In...
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ (∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj') → ¬(𝓓)-Consistent (T, insert p U)
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_not_ParametricConsistent_insert₂
[76, 1]
[79, 69]
. contrapose; push_neg; apply iff_ParametricConsistent_insert₂.mp;
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ (∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj') → ¬(𝓓)-Consistent (T, insert p U)
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_not_ParametricConsistent_insert₂
[76, 1]
[79, 69]
contrapose
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ ¬(𝓓)-Consistent (T, insert p U) → ∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj'
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ (¬∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj') → ¬¬(𝓓)-Consistent (T, insert p U)
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_not_ParametricConsistent_insert₂
[76, 1]
[79, 69]
push_neg
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ (¬∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj') → ¬¬(𝓓)-Consistent (T, insert p U)
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ (∀ (Γ Δ : List (Formula α)), (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → ¬𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj') → (𝓓)-Consistent (T, insert p U)
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_not_ParametricConsistent_insert₂
[76, 1]
[79, 69]
apply iff_ParametricConsistent_insert₂.mpr
case mp α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ (∀ (Γ Δ : List (Formula α)), (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → ¬𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj') → (𝓓)-Consistent (T, insert p U)
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_not_ParametricConsistent_insert₂
[76, 1]
[79, 69]
contrapose
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ (∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj') → ¬(𝓓)-Consistent (T, insert p U)
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ ¬¬(𝓓)-Consistent (T, insert p U) → ¬∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj'
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_not_ParametricConsistent_insert₂
[76, 1]
[79, 69]
push_neg
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ ¬¬(𝓓)-Consistent (T, insert p U) → ¬∃ Γ Δ, (∀ p ∈ Γ, p ∈ T) ∧ (∀ p ∈ Δ, p ∈ U) ∧ 𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj'
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ (𝓓)-Consistent (T, insert p U) → ∀ (Γ Δ : List (Formula α)), (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → ¬𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj'
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.iff_not_ParametricConsistent_insert₂
[76, 1]
[79, 69]
apply iff_ParametricConsistent_insert₂.mp
case mpr α : Type u_1 inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ T : Theory α p : Formula α U : Theory α ⊢ (𝓓)-Consistent (T, insert p U) → ∀ (Γ Δ : List (Formula α)), (∀ p ∈ Γ, p ∈ T) → (∀ p ∈ Δ, p ∈ U) → ¬𝓓 ⊢! Γ.conj' ⟶ p ⋎ Δ.disj'
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.consistent_either
[85, 1]
[97, 17]
by_contra hC
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α ⊢ (𝓓)-Consistent (insert p t.1, t.2) ∨ (𝓓)-Consistent (t.1, insert p t.2)
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬((𝓓)-Consistent (insert p t.1, t.2) ∨ (𝓓)-Consistent (t.1, insert p t.2)) ⊢ False
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.consistent_either
[85, 1]
[97, 17]
push_neg at hC
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬((𝓓)-Consistent (insert p t.1, t.2) ∨ (𝓓)-Consistent (t.1, insert p t.2)) ⊢ False
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) ⊢ False
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.consistent_either
[85, 1]
[97, 17]
have ⟨hC₁, hC₂⟩ := hC
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) ⊢ False
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(𝓓)-Consistent (t.1, insert p ...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.consistent_either
[85, 1]
[97, 17]
obtain ⟨Γ₁, Δ₁, hΓ₁, hΔ₁, h₁⟩ := iff_not_ParametricConsistent_insert₁.mp hC₁
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(𝓓)-Consistent (t.1, insert p ...
case intro.intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(�...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.consistent_either
[85, 1]
[97, 17]
replace h₁ := imply_left_and_comm'! h₁
case intro.intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(�...
case intro.intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(�...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.consistent_either
[85, 1]
[97, 17]
obtain ⟨Γ₂, Δ₂, hΓ₂, hΔ₂, h₂⟩ := iff_not_ParametricConsistent_insert₂.mp hC₂
case intro.intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(�...
case intro.intro.intro.intro.intro.intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (inse...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.consistent_either
[85, 1]
[97, 17]
have : 𝓓 ⊢! (Γ₁ ++ Γ₂).conj' ⟶ (Δ₁ ++ Δ₂).disj' := imp_trans! (conj₁'! iff_concat_conj!) $ imp_trans! (cut! h₁ h₂) (conj₂'! iff_concact_disj!)
case intro.intro.intro.intro.intro.intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (inse...
case intro.intro.intro.intro.intro.intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (inse...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.consistent_either
[85, 1]
[97, 17]
have : 𝓓 ⊬! (Γ₁ ++ Γ₂).conj' ⟶ (Δ₁ ++ Δ₂).disj' := hCon (by simp; rintro q (hq₁ | hq₂); exact hΓ₁ q hq₁; exact hΓ₂ q hq₂) (by simp; rintro q (hq₁ | hq₂); exact hΔ₁ q hq₁; exact hΔ₂ q hq₂)
case intro.intro.intro.intro.intro.intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (inse...
case intro.intro.intro.intro.intro.intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (inse...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.consistent_either
[85, 1]
[97, 17]
contradiction
case intro.intro.intro.intro.intro.intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (inse...
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.consistent_either
[85, 1]
[97, 17]
simp
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(𝓓)-Consistent (t.1, insert p ...
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(𝓓)-Consistent (t.1, insert p ...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.consistent_either
[85, 1]
[97, 17]
rintro q (hq₁ | hq₂)
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(𝓓)-Consistent (t.1, insert p ...
case inl α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(𝓓)-Consistent (t.1, ...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.consistent_either
[85, 1]
[97, 17]
exact hΓ₁ q hq₁
case inl α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(𝓓)-Consistent (t.1, ...
case inr α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(𝓓)-Consistent (t.1, ...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.consistent_either
[85, 1]
[97, 17]
exact hΓ₂ q hq₂
case inr α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(𝓓)-Consistent (t.1, ...
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.consistent_either
[85, 1]
[97, 17]
simp
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(𝓓)-Consistent (t.1, insert p ...
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(𝓓)-Consistent (t.1, insert p ...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.consistent_either
[85, 1]
[97, 17]
rintro q (hq₁ | hq₂)
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(𝓓)-Consistent (t.1, insert p ...
case inl α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(𝓓)-Consistent (t.1, ...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.consistent_either
[85, 1]
[97, 17]
exact hΔ₁ q hq₁
case inl α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(𝓓)-Consistent (t.1, ...
case inr α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(𝓓)-Consistent (t.1, ...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.consistent_either
[85, 1]
[97, 17]
exact hΔ₂ q hq₂
case inr α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t p : Formula α hC : ¬(𝓓)-Consistent (insert p t.1, t.2) ∧ ¬(𝓓)-Consistent (t.1, insert p t.2) hC₁ : ¬(𝓓)-Consistent (insert p t.1, t.2) hC₂ : ¬(𝓓)-Consistent (t.1, ...
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.disjoint_of_consistent
[99, 1]
[108, 17]
by_contra h
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t ⊢ Disjoint t.1 t.2
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t h : ¬Disjoint t.1 t.2 ⊢ False
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.disjoint_of_consistent
[99, 1]
[108, 17]
obtain ⟨T, hp₁, hp₂, hp⟩ := by simpa [Disjoint] using h;
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t h : ¬Disjoint t.1 t.2 ⊢ False
case intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp : ¬T ⊆ ∅ ⊢ False
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.disjoint_of_consistent
[99, 1]
[108, 17]
obtain ⟨p, hp, _⟩ := Set.not_subset.mp hp
case intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp : ¬T ⊆ ∅ ⊢ False
case intro.intro.intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp✝ : ¬T ⊆ ∅ p : Formula α hp : p ∈ T right✝ : p ∉ ∅ ⊢ False
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.disjoint_of_consistent
[99, 1]
[108, 17]
simp [ParametricConsistent] at hCon
case intro.intro.intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp✝ : ¬T ⊆ ∅ p : Formula α hp : p ∈ T right✝ : p ∉ ∅ ⊢ False
case intro.intro.intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ t.1) → (∀ p ∈ Δ, p ∈ t.2) → 𝓓 ⊬! Γ.conj' ⟶ Δ.disj' h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.disjoint_of_consistent
[99, 1]
[108, 17]
have : 𝓓 ⊬! [p].conj' ⟶ [p].disj' := hCon (by simp_all; apply hp₁; assumption) (by simp_all; apply hp₂; assumption)
case intro.intro.intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ t.1) → (∀ p ∈ Δ, p ∈ t.2) → 𝓓 ⊬! Γ.conj' ⟶ Δ.disj' h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp...
case intro.intro.intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ t.1) → (∀ p ∈ Δ, p ∈ t.2) → 𝓓 ⊬! Γ.conj' ⟶ Δ.disj' h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.disjoint_of_consistent
[99, 1]
[108, 17]
have : 𝓓 ⊢! [p].conj' ⟶ [p].disj' := by simp;
case intro.intro.intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ t.1) → (∀ p ∈ Δ, p ∈ t.2) → 𝓓 ⊬! Γ.conj' ⟶ Δ.disj' h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp...
case intro.intro.intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ t.1) → (∀ p ∈ Δ, p ∈ t.2) → 𝓓 ⊬! Γ.conj' ⟶ Δ.disj' h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.disjoint_of_consistent
[99, 1]
[108, 17]
contradiction
case intro.intro.intro.intro.intro α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ t.1) → (∀ p ∈ Δ, p ∈ t.2) → 𝓓 ⊬! Γ.conj' ⟶ Δ.disj' h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp...
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.disjoint_of_consistent
[99, 1]
[108, 17]
simpa [Disjoint] using h
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t h : ¬Disjoint t.1 t.2 ⊢ ?m.113495
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.disjoint_of_consistent
[99, 1]
[108, 17]
simp_all
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ t.1) → (∀ p ∈ Δ, p ∈ t.2) → 𝓓 ⊬! Γ.conj' ⟶ Δ.disj' h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp✝ : ¬T ⊆ ∅ p : Formula α hp : p ∈ T...
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ t.1) → (∀ p ∈ Δ, p ∈ t.2) → 𝓓 ⊬! Γ.conj' ⟶ Δ.disj' h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp✝ : ¬T ⊆ ∅ p : Formula α hp : p ∈ T...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.disjoint_of_consistent
[99, 1]
[108, 17]
apply hp₁
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ t.1) → (∀ p ∈ Δ, p ∈ t.2) → 𝓓 ⊬! Γ.conj' ⟶ Δ.disj' h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp✝ : ¬T ⊆ ∅ p : Formula α hp : p ∈ T...
case a α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ t.1) → (∀ p ∈ Δ, p ∈ t.2) → 𝓓 ⊬! Γ.conj' ⟶ Δ.disj' h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp✝ : ¬T ⊆ ∅ p : Formula α hp ...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.disjoint_of_consistent
[99, 1]
[108, 17]
assumption
case a α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ t.1) → (∀ p ∈ Δ, p ∈ t.2) → 𝓓 ⊬! Γ.conj' ⟶ Δ.disj' h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp✝ : ¬T ⊆ ∅ p : Formula α hp ...
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.disjoint_of_consistent
[99, 1]
[108, 17]
simp_all
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ t.1) → (∀ p ∈ Δ, p ∈ t.2) → 𝓓 ⊬! Γ.conj' ⟶ Δ.disj' h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp✝ : ¬T ⊆ ∅ p : Formula α hp : p ∈ T...
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ t.1) → (∀ p ∈ Δ, p ∈ t.2) → 𝓓 ⊬! Γ.conj' ⟶ Δ.disj' h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp✝ : ¬T ⊆ ∅ p : Formula α hp : p ∈ T...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.disjoint_of_consistent
[99, 1]
[108, 17]
apply hp₂
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ t.1) → (∀ p ∈ Δ, p ∈ t.2) → 𝓓 ⊬! Γ.conj' ⟶ Δ.disj' h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp✝ : ¬T ⊆ ∅ p : Formula α hp : p ∈ T...
case a α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ t.1) → (∀ p ∈ Δ, p ∈ t.2) → 𝓓 ⊬! Γ.conj' ⟶ Δ.disj' h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp✝ : ¬T ⊆ ∅ p : Formula α hp ...
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.disjoint_of_consistent
[99, 1]
[108, 17]
simp
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : ∀ {Γ Δ : List (Formula α)}, (∀ p ∈ Γ, p ∈ t.1) → (∀ p ∈ Δ, p ∈ t.2) → 𝓓 ⊬! Γ.conj' ⟶ Δ.disj' h : ¬Disjoint t.1 t.2 T : Theory α hp₁ : T ⊆ t.1 hp₂ : T ⊆ t.2 hp✝ : ¬T ⊆ ∅ p : Formula α hp : p ∈ T...
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.not_mem₂
[110, 1]
[114, 17]
by_contra hC
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t q : Formula α Γ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ t.1 h : 𝓓 ⊢! Γ.conj' ⟶ q ⊢ q ∉ t.2
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t q : Formula α Γ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ t.1 h : 𝓓 ⊢! Γ.conj' ⟶ q hC : q ∈ t.2 ⊢ False
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.not_mem₂
[110, 1]
[114, 17]
have : 𝓓 ⊢! Γ.conj' ⟶ [q].disj' := by simpa;
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t q : Formula α Γ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ t.1 h : 𝓓 ⊢! Γ.conj' ⟶ q hC : q ∈ t.2 ⊢ False
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t q : Formula α Γ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ t.1 h : 𝓓 ⊢! Γ.conj' ⟶ q hC : q ∈ t.2 this : 𝓓 ⊢! Γ.conj' ⟶ [q].disj' ⊢ False
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.not_mem₂
[110, 1]
[114, 17]
have : 𝓓 ⊬! Γ.conj' ⟶ [q].disj' := hCon (by aesop) (by aesop)
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t q : Formula α Γ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ t.1 h : 𝓓 ⊢! Γ.conj' ⟶ q hC : q ∈ t.2 this : 𝓓 ⊢! Γ.conj' ⟶ [q].disj' ⊢ False
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t q : Formula α Γ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ t.1 h : 𝓓 ⊢! Γ.conj' ⟶ q hC : q ∈ t.2 this✝ : 𝓓 ⊢! Γ.conj' ⟶ [q].disj' this : 𝓓 ⊬! Γ.conj' ⟶ [q].disj' ⊢ False
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.not_mem₂
[110, 1]
[114, 17]
contradiction
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t q : Formula α Γ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ t.1 h : 𝓓 ⊢! Γ.conj' ⟶ q hC : q ∈ t.2 this✝ : 𝓓 ⊢! Γ.conj' ⟶ [q].disj' this : 𝓓 ⊬! Γ.conj' ⟶ [q].disj' ⊢ False
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.not_mem₂
[110, 1]
[114, 17]
simpa
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t q : Formula α Γ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ t.1 h : 𝓓 ⊢! Γ.conj' ⟶ q hC : q ∈ t.2 ⊢ 𝓓 ⊢! Γ.conj' ⟶ [q].disj'
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.not_mem₂
[110, 1]
[114, 17]
aesop
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t q : Formula α Γ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ t.1 h : 𝓓 ⊢! Γ.conj' ⟶ q hC : q ∈ t.2 this : 𝓓 ⊢! Γ.conj' ⟶ [q].disj' ⊢ ∀ p ∈ Γ, p ∈ t.1
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.not_mem₂
[110, 1]
[114, 17]
aesop
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : (𝓓)-Consistent t q : Formula α Γ : List (Formula α) hΓ : ∀ p ∈ Γ, p ∈ t.1 h : 𝓓 ⊢! Γ.conj' ⟶ q hC : q ∈ t.2 this : 𝓓 ⊢! Γ.conj' ⟶ [q].disj' ⊢ ∀ p ∈ [q], p ∈ t.2
no goals
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.mem₂_of_not_mem₁
[125, 1]
[129, 25]
intro h
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : autoParam ((𝓓)-Consistent t) _auto✝ hMat : autoParam t.Saturated _auto✝ p : Formula α ⊢ p ∉ t.1 → p ∈ t.2
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : autoParam ((𝓓)-Consistent t) _auto✝ hMat : autoParam t.Saturated _auto✝ p : Formula α h : p ∉ t.1 ⊢ p ∈ t.2
https://github.com/iehality/lean4-logic.git
9cee05ba7c48d586f7e488ef44f6445dea8102f8
Logic/Propositional/Superintuitionistic/Kripke/Completeness.lean
LO.Propositional.Superintuitionistic.Tableau.mem₂_of_not_mem₁
[125, 1]
[129, 25]
cases (hMat p) with | inl h' => exact absurd h' h; | inr _ => assumption;
α : Type u_1 t : Tableau α inst✝² : DecidableEq α inst✝¹ : Inhabited α 𝓓 : DeductionParameter α inst✝ : 𝓓.IncludeEFQ hCon : autoParam ((𝓓)-Consistent t) _auto✝ hMat : autoParam t.Saturated _auto✝ p : Formula α h : p ∉ t.1 ⊢ p ∈ t.2
no goals