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https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
intro e
case tfae_2_to_3 α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) ⊢ Epi (Sigma...
case tfae_2_to_3 α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Epi (Sig...
Please generate a tactic in lean4 to solve the state. STATE: case tfae_2_to_3 α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
rw [epi_iff_surjective] at e
case tfae_2_to_3 α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Epi (Sig...
case tfae_2_to_3 α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Function...
Please generate a tactic in lean4 to solve the state. STATE: case tfae_2_to_3 α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
let i : ∐ X ≅ finiteCoproduct X := (colimit.isColimit _).coconePointUniqueUpToIso (finiteCoproduct.isColimit _)
case tfae_2_to_3 α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Function...
case tfae_2_to_3 α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Function...
Please generate a tactic in lean4 to solve the state. STATE: case tfae_2_to_3 α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
intro b
case tfae_2_to_3 α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Function...
case tfae_2_to_3 α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Function...
Please generate a tactic in lean4 to solve the state. STATE: case tfae_2_to_3 α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
obtain ⟨t,rfl⟩ := e b
case tfae_2_to_3 α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Function...
case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Fu...
Please generate a tactic in lean4 to solve the state. STATE: case tfae_2_to_3 α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
let q := i.hom t
case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Fu...
case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Fu...
Please generate a tactic in lean4 to solve the state. STATE: case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfa...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
refine ⟨q.1,q.2,?_⟩
case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Fu...
case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Fu...
Please generate a tactic in lean4 to solve the state. STATE: case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfa...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
have : t = i.inv (i.hom t) := show t = (i.hom ≫ i.inv) t by simp only [i.hom_inv_id] ; rfl
case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Fu...
case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Fu...
Please generate a tactic in lean4 to solve the state. STATE: case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfa...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
rw [this]
case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Fu...
case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Fu...
Please generate a tactic in lean4 to solve the state. STATE: case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfa...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
show _ = (i.inv ≫ Sigma.desc π) (i.hom t)
case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Fu...
case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Fu...
Please generate a tactic in lean4 to solve the state. STATE: case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfa...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
suffices i.inv ≫ Sigma.desc π = finiteCoproduct.desc X π by rw [this] ; rfl
case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Fu...
case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Fu...
Please generate a tactic in lean4 to solve the state. STATE: case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfa...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
rw [Iso.inv_comp_eq]
case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Fu...
case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Fu...
Please generate a tactic in lean4 to solve the state. STATE: case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfa...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
apply colimit.hom_ext
case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Fu...
case tfae_2_to_3.intro.w α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : ...
Please generate a tactic in lean4 to solve the state. STATE: case tfae_2_to_3.intro α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfa...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
rintro ⟨a⟩
case tfae_2_to_3.intro.w α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : ...
case tfae_2_to_3.intro.w.mk α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e...
Please generate a tactic in lean4 to solve the state. STATE: case tfae_2_to_3.intro.w α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ t...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
simp only [Discrete.functor_obj, colimit.ι_desc, Cofan.mk_pt, Cofan.mk_ι_app, colimit.comp_coconePointUniqueUpToIso_hom_assoc]
case tfae_2_to_3.intro.w.mk α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e...
case tfae_2_to_3.intro.w.mk α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e...
Please generate a tactic in lean4 to solve the state. STATE: case tfae_2_to_3.intro.w.mk α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
ext
case tfae_2_to_3.intro.w.mk α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e...
case tfae_2_to_3.intro.w.mk.w α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π)...
Please generate a tactic in lean4 to solve the state. STATE: case tfae_2_to_3.intro.w.mk α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
rfl
case tfae_2_to_3.intro.w.mk.w α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π)...
no goals
Please generate a tactic in lean4 to solve the state. STATE: case tfae_2_to_3.intro.w.mk.w α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
simp only [i.hom_inv_id]
α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Function.Surjective ↑(Sig...
α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Function.Surjective ↑(Sig...
Please generate a tactic in lean4 to solve the state. STATE: α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpi...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
rfl
α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Function.Surjective ↑(Sig...
no goals
Please generate a tactic in lean4 to solve the state. STATE: α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpi...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
rw [this]
α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Function.Surjective ↑(Sig...
α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Function.Surjective ↑(Sig...
Please generate a tactic in lean4 to solve the state. STATE: α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpi...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
rfl
α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) e : Function.Surjective ↑(Sig...
no goals
Please generate a tactic in lean4 to solve the state. STATE: α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpi...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
ExtrDisc/Epi.lean
ExtrDisc.effectiveEpiFamily_tfae
[161, 1]
[195, 14]
apply effectiveEpiFamily_of_jointly_surjective
case tfae_3_to_1 α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to_2 : EffectiveEpiFamily X π → Epi (Sigma.desc π) tfae_2_to_3 ...
no goals
Please generate a tactic in lean4 to solve the state. STATE: case tfae_3_to_1 α✝ : Type inst✝¹ : Fintype α✝ B✝ : ExtrDisc X✝ : α✝ → ExtrDisc π✝ : (a : α✝) → X✝ a ⟶ B✝ surj : ∀ (b : CoeSort.coe B✝), ∃ a x, ↑(π✝ a) x = b α : Type inst✝ : Fintype α B : ExtrDisc X : α → ExtrDisc π : (a : α) → X a ⟶ B tfae_1_to_2✝ tfae_1_to...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.toFiniteCoproductCompFromFiniteCoproduct
[27, 1]
[30, 48]
ext
α : Type inst✝ : Fintype α Z : α → CompHaus ⊢ toFiniteCoproduct Z ≫ fromFiniteCoproduct Z = 𝟙 (∐ Z)
case h.w α : Type inst✝ : Fintype α Z : α → CompHaus b✝ : α x✝ : (forget CompHaus).obj (Z b✝) ⊢ ↑(Sigma.ι Z b✝ ≫ toFiniteCoproduct Z ≫ fromFiniteCoproduct Z) x✝ = ↑(Sigma.ι Z b✝ ≫ 𝟙 (∐ Z)) x✝
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α Z : α → CompHaus ⊢ toFiniteCoproduct Z ≫ fromFiniteCoproduct Z = 𝟙 (∐ Z) TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.toFiniteCoproductCompFromFiniteCoproduct
[27, 1]
[30, 48]
simp [toFiniteCoproduct, fromFiniteCoproduct]
case h.w α : Type inst✝ : Fintype α Z : α → CompHaus b✝ : α x✝ : (forget CompHaus).obj (Z b✝) ⊢ ↑(Sigma.ι Z b✝ ≫ toFiniteCoproduct Z ≫ fromFiniteCoproduct Z) x✝ = ↑(Sigma.ι Z b✝ ≫ 𝟙 (∐ Z)) x✝
no goals
Please generate a tactic in lean4 to solve the state. STATE: case h.w α : Type inst✝ : Fintype α Z : α → CompHaus b✝ : α x✝ : (forget CompHaus).obj (Z b✝) ⊢ ↑(Sigma.ι Z b✝ ≫ toFiniteCoproduct Z ≫ fromFiniteCoproduct Z) x✝ = ↑(Sigma.ι Z b✝ ≫ 𝟙 (∐ Z)) x✝ TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.FromFiniteCoproductComptToFiniteCoproduct
[33, 1]
[36, 48]
refine' finiteCoproduct.hom_ext _ _ _ (fun a => _)
α : Type inst✝ : Fintype α Z : α → CompHaus ⊢ fromFiniteCoproduct Z ≫ toFiniteCoproduct Z = 𝟙 (finiteCoproduct Z)
α : Type inst✝ : Fintype α Z : α → CompHaus a : α ⊢ finiteCoproduct.ι Z a ≫ fromFiniteCoproduct Z ≫ toFiniteCoproduct Z = finiteCoproduct.ι Z a ≫ 𝟙 (finiteCoproduct Z)
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α Z : α → CompHaus ⊢ fromFiniteCoproduct Z ≫ toFiniteCoproduct Z = 𝟙 (finiteCoproduct Z) TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.FromFiniteCoproductComptToFiniteCoproduct
[33, 1]
[36, 48]
simp [toFiniteCoproduct, fromFiniteCoproduct]
α : Type inst✝ : Fintype α Z : α → CompHaus a : α ⊢ finiteCoproduct.ι Z a ≫ fromFiniteCoproduct Z ≫ toFiniteCoproduct Z = finiteCoproduct.ι Z a ≫ 𝟙 (finiteCoproduct Z)
no goals
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α Z : α → CompHaus a : α ⊢ finiteCoproduct.ι Z a ≫ fromFiniteCoproduct Z ≫ toFiniteCoproduct Z = finiteCoproduct.ι Z a ≫ 𝟙 (finiteCoproduct Z) TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.IsIsotoFiniteCoproduct
[54, 1]
[56, 44]
simp
α : Type inst✝ : Fintype α Z : α → CompHaus ⊢ toFiniteCoproduct Z ≫ fromFiniteCoproduct Z = 𝟙 (∐ Z)
no goals
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α Z : α → CompHaus ⊢ toFiniteCoproduct Z ≫ fromFiniteCoproduct Z = 𝟙 (∐ Z) TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.IsIsotoFiniteCoproduct
[54, 1]
[56, 44]
simp
α : Type inst✝ : Fintype α Z : α → CompHaus ⊢ fromFiniteCoproduct Z ≫ toFiniteCoproduct Z = 𝟙 (finiteCoproduct Z)
no goals
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α Z : α → CompHaus ⊢ fromFiniteCoproduct Z ≫ toFiniteCoproduct Z = 𝟙 (finiteCoproduct Z) TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.IsIsofromFiniteCoproduct
[58, 1]
[60, 42]
simp
α : Type inst✝ : Fintype α Z : α → CompHaus ⊢ fromFiniteCoproduct Z ≫ toFiniteCoproduct Z = 𝟙 (finiteCoproduct Z)
no goals
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α Z : α → CompHaus ⊢ fromFiniteCoproduct Z ≫ toFiniteCoproduct Z = 𝟙 (finiteCoproduct Z) TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.IsIsofromFiniteCoproduct
[58, 1]
[60, 42]
simp
α : Type inst✝ : Fintype α Z : α → CompHaus ⊢ toFiniteCoproduct Z ≫ fromFiniteCoproduct Z = 𝟙 (∐ Z)
no goals
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α Z : α → CompHaus ⊢ toFiniteCoproduct Z ≫ fromFiniteCoproduct Z = 𝟙 (∐ Z) TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.Sigma.ιCompToFiniteCoproduct
[63, 1]
[65, 27]
simp [toFiniteCoproduct]
α : Type inst✝ : Fintype α Z : α → CompHaus a : α ⊢ Sigma.ι Z a ≫ toFiniteCoproduct Z = finiteCoproduct.ι Z a
no goals
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α Z : α → CompHaus a : α ⊢ Sigma.ι Z a ≫ toFiniteCoproduct Z = finiteCoproduct.ι Z a TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.finiteCoproduct.ιCompFromFiniteCoproduct
[68, 1]
[70, 29]
simp [fromFiniteCoproduct]
α : Type inst✝ : Fintype α Z : α → CompHaus a : α ⊢ ι Z a ≫ fromFiniteCoproduct Z = Sigma.ι Z a
no goals
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α Z : α → CompHaus a : α ⊢ ι Z a ≫ fromFiniteCoproduct Z = Sigma.ι Z a TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.finiteCoproduct.ι_injective
[90, 1]
[93, 43]
intro x y hxy
α✝ : Type inst✝¹ : Fintype α✝ Z✝ : α✝ → CompHaus α : Type inst✝ : Fintype α Z : α → CompHaus a : α ⊢ Function.Injective ↑(ι Z a)
α✝ : Type inst✝¹ : Fintype α✝ Z✝ : α✝ → CompHaus α : Type inst✝ : Fintype α Z : α → CompHaus a : α x y : (forget CompHaus).obj (Z a) hxy : ↑(ι Z a) x = ↑(ι Z a) y ⊢ x = y
Please generate a tactic in lean4 to solve the state. STATE: α✝ : Type inst✝¹ : Fintype α✝ Z✝ : α✝ → CompHaus α : Type inst✝ : Fintype α Z : α → CompHaus a : α ⊢ Function.Injective ↑(ι Z a) TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.finiteCoproduct.ι_injective
[90, 1]
[93, 43]
exact eq_of_heq (Sigma.ext_iff.mp hxy).2
α✝ : Type inst✝¹ : Fintype α✝ Z✝ : α✝ → CompHaus α : Type inst✝ : Fintype α Z : α → CompHaus a : α x y : (forget CompHaus).obj (Z a) hxy : ↑(ι Z a) x = ↑(ι Z a) y ⊢ x = y
no goals
Please generate a tactic in lean4 to solve the state. STATE: α✝ : Type inst✝¹ : Fintype α✝ Z✝ : α✝ → CompHaus α : Type inst✝ : Fintype α Z : α → CompHaus a : α x y : (forget CompHaus).obj (Z a) hxy : ↑(ι Z a) x = ↑(ι Z a) y ⊢ x = y TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.finiteCoproduct.ι_jointly_surjective
[95, 1]
[97, 28]
exact ⟨R.fst, R.snd, rfl⟩
α✝ : Type inst✝¹ : Fintype α✝ Z✝ : α✝ → CompHaus α : Type inst✝ : Fintype α Z : α → CompHaus R : ↑(finiteCoproduct Z).toTop ⊢ ∃ a r, R = ↑(ι Z a) r
no goals
Please generate a tactic in lean4 to solve the state. STATE: α✝ : Type inst✝¹ : Fintype α✝ Z✝ : α✝ → CompHaus α : Type inst✝ : Fintype α Z : α → CompHaus R : ↑(finiteCoproduct Z).toTop ⊢ ∃ a r, R = ↑(ι Z a) r TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.finiteCoproduct.ι_desc_apply
[99, 1]
[104, 21]
intro x
α✝ : Type inst✝¹ : Fintype α✝ Z✝ : α✝ → CompHaus α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X a : α ⊢ ∀ (x : (forget CompHaus).obj (Z a)), ↑(desc Z π) (↑(ι Z a) x) = ↑(π a) x
α✝ : Type inst✝¹ : Fintype α✝ Z✝ : α✝ → CompHaus α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X a : α x : (forget CompHaus).obj (Z a) ⊢ ↑(desc Z π) (↑(ι Z a) x) = ↑(π a) x
Please generate a tactic in lean4 to solve the state. STATE: α✝ : Type inst✝¹ : Fintype α✝ Z✝ : α✝ → CompHaus α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X a : α ⊢ ∀ (x : (forget CompHaus).obj (Z a)), ↑(desc Z π) (↑(ι Z a) x) = ↑(π a) x TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.finiteCoproduct.ι_desc_apply
[99, 1]
[104, 21]
change (ι Z a ≫ desc Z π) _ = _
α✝ : Type inst✝¹ : Fintype α✝ Z✝ : α✝ → CompHaus α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X a : α x : (forget CompHaus).obj (Z a) ⊢ ↑(desc Z π) (↑(ι Z a) x) = ↑(π a) x
α✝ : Type inst✝¹ : Fintype α✝ Z✝ : α✝ → CompHaus α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X a : α x : (forget CompHaus).obj (Z a) ⊢ ↑(ι Z a ≫ desc Z π) x = ↑(π a) x
Please generate a tactic in lean4 to solve the state. STATE: α✝ : Type inst✝¹ : Fintype α✝ Z✝ : α✝ → CompHaus α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X a : α x : (forget CompHaus).obj (Z a) ⊢ ↑(desc Z π) (↑(ι Z a) x) = ↑(π a) x TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.finiteCoproduct.ι_desc_apply
[99, 1]
[104, 21]
simp only [ι_desc]
α✝ : Type inst✝¹ : Fintype α✝ Z✝ : α✝ → CompHaus α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X a : α x : (forget CompHaus).obj (Z a) ⊢ ↑(ι Z a ≫ desc Z π) x = ↑(π a) x
no goals
Please generate a tactic in lean4 to solve the state. STATE: α✝ : Type inst✝¹ : Fintype α✝ Z✝ : α✝ → CompHaus α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X a : α x : (forget CompHaus).obj (Z a) ⊢ ↑(ι Z a ≫ desc Z π) x = ↑(π a) x TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.finiteCoproduct.range_eq
[106, 1]
[108, 9]
rw [h]
α✝ : Type inst✝¹ : Fintype α✝ Z✝ : α✝ → CompHaus α : Type inst✝ : Fintype α Z : α → CompHaus a b : α h : a = b ⊢ Set.range ↑(ι Z a) = Set.range ↑(ι Z b)
no goals
Please generate a tactic in lean4 to solve the state. STATE: α✝ : Type inst✝¹ : Fintype α✝ Z✝ : α✝ → CompHaus α : Type inst✝ : Fintype α Z : α → CompHaus a b : α h : a = b ⊢ Set.range ↑(ι Z a) = Set.range ↑(ι Z b) TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.toExplicitCompFromExcplict
[127, 1]
[132, 37]
refine' Limits.pullback.hom_ext (k := (toExplicit f i ≫ fromExplicit f i)) _ _
α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ toExplicit f i ≫ fromExplicit f i = 𝟙 (Limits.pullback f i)
case refine'_1 α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ (toExplicit f i ≫ fromExplicit f i) ≫ Limits.pullback.fst = 𝟙 (Limits.pullback f i) ≫ Limits.pullback.fst case refine'_2 α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ (toExplicit f ...
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ toExplicit f i ≫ fromExplicit f i = 𝟙 (Limits.pullback f i) TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.toExplicitCompFromExcplict
[127, 1]
[132, 37]
simp [toExplicit, fromExplicit]
case refine'_1 α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ (toExplicit f i ≫ fromExplicit f i) ≫ Limits.pullback.fst = 𝟙 (Limits.pullback f i) ≫ Limits.pullback.fst
no goals
Please generate a tactic in lean4 to solve the state. STATE: case refine'_1 α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ (toExplicit f i ≫ fromExplicit f i) ≫ Limits.pullback.fst = 𝟙 (Limits.pullback f i) ≫ Limits.pullback.fst TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.toExplicitCompFromExcplict
[127, 1]
[132, 37]
rw [Category.id_comp, Category.assoc, fromExplicit, Limits.pullback.lift_snd, toExplicit, pullback.lift_snd]
case refine'_2 α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ (toExplicit f i ≫ fromExplicit f i) ≫ Limits.pullback.snd = 𝟙 (Limits.pullback f i) ≫ Limits.pullback.snd
no goals
Please generate a tactic in lean4 to solve the state. STATE: case refine'_2 α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ (toExplicit f i ≫ fromExplicit f i) ≫ Limits.pullback.snd = 𝟙 (Limits.pullback f i) ≫ Limits.pullback.snd TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.fromExcplictComptoExplicit
[135, 1]
[137, 101]
simp [toExplicit, fromExplicit]
α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ (fromExplicit f i ≫ toExplicit f i) ≫ pullback.fst f i = 𝟙 (pullback f i) ≫ pullback.fst f i
no goals
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ (fromExplicit f i ≫ toExplicit f i) ≫ pullback.fst f i = 𝟙 (pullback f i) ≫ pullback.fst f i TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.fromExcplictComptoExplicit
[135, 1]
[137, 101]
simp [toExplicit, fromExplicit]
α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ (fromExplicit f i ≫ toExplicit f i) ≫ pullback.snd f i = 𝟙 (pullback f i) ≫ pullback.snd f i
no goals
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ (fromExplicit f i ≫ toExplicit f i) ≫ pullback.snd f i = 𝟙 (pullback f i) ≫ pullback.snd f i TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.fst_comp_fromExplicit
[151, 1]
[154, 70]
dsimp [fromExplicit]
α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ pullback.fst f i = fromExplicit f i ≫ Limits.pullback.fst
α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ pullback.fst f i = Limits.pullback.lift (pullback.fst f i) (pullback.snd f i) (_ : pullback.fst f i ≫ f = pullback.snd f i ≫ i) ≫ Limits.pullback.fst
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ pullback.fst f i = fromExplicit f i ≫ Limits.pullback.fst TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.fst_comp_fromExplicit
[151, 1]
[154, 70]
simp only [limit.lift_π, PullbackCone.mk_pt, PullbackCone.mk_π_app]
α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ pullback.fst f i = Limits.pullback.lift (pullback.fst f i) (pullback.snd f i) (_ : pullback.fst f i ≫ f = pullback.snd f i ≫ i) ≫ Limits.pullback.fst
no goals
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ pullback.fst f i = Limits.pullback.lift (pullback.fst f i) (pullback.snd f i) (_ : pullback.fst f i ≫ f = pullback.snd f i ≫ i) ≫ Limits.pullback.fst TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.snd_comp_fromExplicit
[156, 1]
[159, 70]
dsimp [fromExplicit]
α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ pullback.snd f i = fromExplicit f i ≫ Limits.pullback.snd
α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ pullback.snd f i = Limits.pullback.lift (pullback.fst f i) (pullback.snd f i) (_ : pullback.fst f i ≫ f = pullback.snd f i ≫ i) ≫ Limits.pullback.snd
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ pullback.snd f i = fromExplicit f i ≫ Limits.pullback.snd TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitLimits.lean
CompHaus.snd_comp_fromExplicit
[156, 1]
[159, 70]
simp only [limit.lift_π, PullbackCone.mk_pt, PullbackCone.mk_π_app]
α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ pullback.snd f i = Limits.pullback.lift (pullback.fst f i) (pullback.snd f i) (_ : pullback.fst f i ≫ f = pullback.snd f i ≫ i) ≫ Limits.pullback.snd
no goals
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α Z✝ : α → CompHaus X Y Z : CompHaus f : X ⟶ Z i : Y ⟶ Z ⊢ pullback.snd f i = Limits.pullback.lift (pullback.fst f i) (pullback.snd f i) (_ : pullback.fst f i ≫ f = pullback.snd f i ≫ i) ≫ Limits.pullback.snd TACTIC:
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
let ζ := finiteCoproduct.desc _ (fun a => pullback.snd f (π a) ≫ finiteCoproduct.ι Z a )
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ⊢ Function.Injective ↑(finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.fst f (π a))
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ⊢ Function.Injective ↑(finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.fst f (π a)) T...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
let σ := finiteCoproduct.desc _ ((fun a => pullback.fst f (π a)))
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
let β := finiteCoproduct.desc _ π
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
have comm : ζ ≫ β = σ ≫ f := by refine' finiteCoproduct.hom_ext _ _ _ (fun a => _) simp [← Category.assoc, finiteCoproduct.ι_desc, pullback.condition]
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
intro R₁ R₂ hR
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
have himage : (ζ ≫ β) R₁ = (ζ ≫ β) R₂ := by rw [comm]; change f (σ R₁) = f (σ R₂); rw [hR]
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
replace himage := congr_arg (inv β) himage
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
change ((ζ ≫ β ≫ inv β) R₁) = ((ζ ≫ β ≫ inv β) R₂) at himage
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
rw [IsIso.hom_inv_id, Category.comp_id] at himage
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
obtain ⟨a₁, r₁, h₁⟩ := finiteCoproduct.ι_jointly_surjective R₁
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
case intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π...
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
obtain ⟨a₂, r₂, h₂⟩ := finiteCoproduct.ι_jointly_surjective R₂
case intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π...
case intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullb...
Please generate a tactic in lean4 to solve the state. STATE: case intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduc...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
have ha₁ : a₁ = R₁.fst := (congrArg Sigma.fst h₁).symm
case intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullb...
case intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullb...
Please generate a tactic in lean4 to solve the state. STATE: case intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := fi...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
have ha₂ : a₂ = R₂.fst := (congrArg Sigma.fst h₂).symm
case intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullb...
case intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullb...
Please generate a tactic in lean4 to solve the state. STATE: case intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := fi...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
have ha : a₁ = a₂ := by rwa [ha₁, ha₂]
case intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullb...
case intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullb...
Please generate a tactic in lean4 to solve the state. STATE: case intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := fi...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
have : R₁ ∈ Set.range (finiteCoproduct.ι _ a₂)
case intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullb...
case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ f...
Please generate a tactic in lean4 to solve the state. STATE: case intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := fi...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
obtain ⟨xr', hr'⟩ := this
case intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullb...
case intro.intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a =>...
Please generate a tactic in lean4 to solve the state. STATE: case intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := fi...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
rw [← hr', h₂] at hR
case intro.intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a =>...
case intro.intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a =>...
Please generate a tactic in lean4 to solve the state. STATE: case intro.intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z :...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
have hf : ∀ (a : α), Function.Injective ((finiteCoproduct.ι _ a) ≫ (finiteCoproduct.desc _ ((fun a => pullback.fst f (π a)))))
case intro.intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a =>...
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
Please generate a tactic in lean4 to solve the state. STATE: case intro.intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z :...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
have := hf a₂ hR
case intro.intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a =>...
case intro.intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a =>...
Please generate a tactic in lean4 to solve the state. STATE: case intro.intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z :...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
rw [← hr', h₂, this]
case intro.intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a =>...
no goals
Please generate a tactic in lean4 to solve the state. STATE: case intro.intro.intro.intro.intro α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z :...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
refine' finiteCoproduct.hom_ext _ _ _ (fun a => _)
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
simp [← Category.assoc, finiteCoproduct.ι_desc, pullback.condition]
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
no goals
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
rw [comm]
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
change f (σ R₁) = f (σ R₂)
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
rw [hR]
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
no goals
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
constructor <;> rfl
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
no goals
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
rw [← this.1, ← this.2, himage]
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
no goals
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
rwa [ha₁, ha₂]
α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ finiteCopro...
no goals
Please generate a tactic in lean4 to solve the state. STATE: α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
rw [← finiteCoproduct.range_eq ha, h₁]
case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ f...
case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ f...
Please generate a tactic in lean4 to solve the state. STATE: case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
simp only [Set.mem_range, exists_apply_eq_apply]
case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ f...
no goals
Please generate a tactic in lean4 to solve the state. STATE: case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
intro a
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
Please generate a tactic in lean4 to solve the state. STATE: case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (f...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
simp only [finiteCoproduct.ι_desc]
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
Please generate a tactic in lean4 to solve the state. STATE: case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (f...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
intro x y h
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
Please generate a tactic in lean4 to solve the state. STATE: case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (f...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
have h₁ := h
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
Please generate a tactic in lean4 to solve the state. STATE: case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (f...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
apply_fun f at h
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
Please generate a tactic in lean4 to solve the state. STATE: case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (f...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
change (pullback.fst f (π a) ≫ f) x = _ at h
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
Please generate a tactic in lean4 to solve the state. STATE: case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (f...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
have h' := h.symm
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
Please generate a tactic in lean4 to solve the state. STATE: case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (f...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
change (pullback.fst f (π a) ≫ f) y = _ at h'
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
Please generate a tactic in lean4 to solve the state. STATE: case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (f...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
rw [pullback.condition] at h'
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
Please generate a tactic in lean4 to solve the state. STATE: case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (f...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
have : Function.Injective (π a)
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ f...
Please generate a tactic in lean4 to solve the state. STATE: case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (f...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
have h₂ := this h'
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
Please generate a tactic in lean4 to solve the state. STATE: case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (f...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
suffices : x.val = y.val
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
Please generate a tactic in lean4 to solve the state. STATE: case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (f...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
exact Prod.ext h₁ h₂.symm
case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ f...
no goals
Please generate a tactic in lean4 to solve the state. STATE: case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
intro r s hrs
case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ f...
case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ f...
Please generate a tactic in lean4 to solve the state. STATE: case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
rw [← finiteCoproduct.ι_desc_apply] at hrs
case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ f...
case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ f...
Please generate a tactic in lean4 to solve the state. STATE: case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
have hrs' := hrs.symm
case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ f...
case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ f...
Please generate a tactic in lean4 to solve the state. STATE: case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
rw [← finiteCoproduct.ι_desc_apply] at hrs'
case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ f...
case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ f...
Please generate a tactic in lean4 to solve the state. STATE: case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
have : Function.Injective (finiteCoproduct.desc (fun a ↦ Z a) π)
case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ f...
case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ f...
Please generate a tactic in lean4 to solve the state. STATE: case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
exact (finiteCoproduct.ι_injective a (this hrs')).symm
case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ f...
no goals
Please generate a tactic in lean4 to solve the state. STATE: case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
apply Function.Bijective.injective
case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ f...
case this.hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ...
Please generate a tactic in lean4 to solve the state. STATE: case this α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc ...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
exact ConcreteCategory.bijective_of_isIso _
case this.hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ...
no goals
Please generate a tactic in lean4 to solve the state. STATE: case this.hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.de...
https://github.com/adamtopaz/CopenhagenMasterclass2023.git
a293ca1554f7e80d891fd4d86fb092c54d8a0a01
CompHaus/ExplicitSheaves.lean
CompHaus.extensivity_injective
[10, 1]
[65, 23]
exact Subtype.ext this
case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (fun a => pullback f (π a)) fun a => pullback.snd f (π a) ≫ fin...
no goals
Please generate a tactic in lean4 to solve the state. STATE: case hf α : Type inst✝ : Fintype α X : CompHaus Z : α → CompHaus π : (a : α) → Z a ⟶ X Y : CompHaus f : Y ⟶ X HIso : IsIso (finiteCoproduct.desc (fun a => Z a) π) ζ : (finiteCoproduct fun a => pullback f (π a)) ⟶ finiteCoproduct Z := finiteCoproduct.desc (f...