Theorem: CategoryTheory.ShortComplex.mapHomologyIso'_eq_mapHomologyIso
File: Mathlib/Algebra/Homology/ShortComplex/PreservesHomology.lean

Proof steps:
state_before: C : Type u_1
D : Type u_2
inst✝⁸ : Category.{u_3, u_1} C
inst✝⁷ : Category.{u_4, u_2} D
inst✝⁶ : HasZeroMorphisms C
inst✝⁵ : HasZeroMorphisms D
S : ShortComplex C
h₁✝ : S.LeftHomologyData
h₂✝ : S.RightHomologyData
F✝ : C ⥤ D
inst✝⁴ : F✝.PreservesZeroMorphisms
hl : S.LeftHomologyData
hr : S.RightHomologyData
S₁ S₂ : ShortComplex C
φ : S₁ ⟶ S₂
hl₁ : S₁.LeftHomologyData
hr₁ : S₁.RightHomologyData
hl₂ : S₂.LeftHomologyData
hr₂ : S₂.RightHomologyData
h₁ : S₁.HomologyData
h₂ : S₂.HomologyData
F : C ⥤ D
inst✝³ : F.PreservesZeroMorphisms
inst✝² : S.HasHomology
inst✝¹ : F.PreservesLeftHomologyOf S
inst✝ : F.PreservesRightHomologyOf S
⊢ S.mapHomologyIso' F = S.mapHomologyIso F
state_after: case w
C : Type u_1
D : Type u_2
inst✝⁸ : Category.{u_3, u_1} C
inst✝⁷ : Category.{u_4, u_2} D
inst✝⁶ : HasZeroMorphisms C
inst✝⁵ : HasZeroMorphisms D
S : ShortComplex C
h₁✝ : S.LeftHomologyData
h₂✝ : S.RightHomologyData
F✝ : C ⥤ D
inst✝⁴ : F✝.PreservesZeroMorphisms
hl : S.LeftHomologyData
hr : S.RightHomologyData
S₁ S₂ : ShortComplex C
φ : S₁ ⟶ S₂
hl₁ : S₁.LeftHomologyData
hr₁ : S₁.RightHomologyData
hl₂ : S₂.LeftHomologyData
hr₂ : S₂.RightHomologyData
h₁ : S₁.HomologyData
h₂ : S₂.HomologyData
F : C ⥤ D
inst✝³ : F.PreservesZeroMorphisms
inst✝² : S.HasHomology
inst✝¹ : F.PreservesLeftHomologyOf S
inst✝ : F.PreservesRightHomologyOf S
⊢ (S.mapHomologyIso' F).hom = (S.mapHomologyIso F).hom
tactic: ext
state_before: case w
C : Type u_1
D : Type u_2
inst✝⁸ : Category.{u_3, u_1} C
inst✝⁷ : Category.{u_4, u_2} D
inst✝⁶ : HasZeroMorphisms C
inst✝⁵ : HasZeroMorphisms D
S : ShortComplex C
h₁✝ : S.LeftHomologyData
h₂✝ : S.RightHomologyData
F✝ : C ⥤ D
inst✝⁴ : F✝.PreservesZeroMorphisms
hl : S.LeftHomologyData
hr : S.RightHomologyData
S₁ S₂ : ShortComplex C
φ : S₁ ⟶ S₂
hl₁ : S₁.LeftHomologyData
hr₁ : S₁.RightHomologyData
hl₂ : S₂.LeftHomologyData
hr₂ : S₂.RightHomologyData
h₁ : S₁.HomologyData
h₂ : S₂.HomologyData
F : C ⥤ D
inst✝³ : F.PreservesZeroMorphisms
inst✝² : S.HasHomology
inst✝¹ : F.PreservesLeftHomologyOf S
inst✝ : F.PreservesRightHomologyOf S
⊢ (S.mapHomologyIso' F).hom = (S.mapHomologyIso F).hom
state_after: case w
C : Type u_1
D : Type u_2
inst✝⁸ : Category.{u_3, u_1} C
inst✝⁷ : Category.{u_4, u_2} D
inst✝⁶ : HasZeroMorphisms C
inst✝⁵ : HasZeroMorphisms D
S : ShortComplex C
h₁✝ : S.LeftHomologyData
h₂✝ : S.RightHomologyData
F✝ : C ⥤ D
inst✝⁴ : F✝.PreservesZeroMorphisms
hl : S.LeftHomologyData
hr : S.RightHomologyData
S₁ S₂ : ShortComplex C
φ : S₁ ⟶ S₂
hl₁ : S₁.LeftHomologyData
hr₁ : S₁.RightHomologyData
hl₂ : S₂.LeftHomologyData
hr₂ : S₂.RightHomologyData
h₁ : S₁.HomologyData
h₂ : S₂.HomologyData
F : C ⥤ D
inst✝³ : F.PreservesZeroMorphisms
inst✝² : S.HasHomology
inst✝¹ : F.PreservesLeftHomologyOf S
inst✝ : F.PreservesRightHomologyOf S
⊢ ((S.homologyData.right.map F).homologyIso ≪≫ F.mapIso S.homologyData.right.homologyIso.symm).hom =
    ((S.homologyData.left.map F).homologyIso ≪≫ F.mapIso S.homologyData.left.homologyIso.symm).hom
tactic: rw [S.homologyData.left.mapHomologyIso_eq F, S.homologyData.right.mapHomologyIso'_eq F]
state_before: case w
C : Type u_1
D : Type u_2
inst✝⁸ : Category.{u_3, u_1} C
inst✝⁷ : Category.{u_4, u_2} D
inst✝⁶ : HasZeroMorphisms C
inst✝⁵ : HasZeroMorphisms D
S : ShortComplex C
h₁✝ : S.LeftHomologyData
h₂✝ : S.RightHomologyData
F✝ : C ⥤ D
inst✝⁴ : F✝.PreservesZeroMorphisms
hl : S.LeftHomologyData
hr : S.RightHomologyData
S₁ S₂ : ShortComplex C
φ : S₁ ⟶ S₂
hl₁ : S₁.LeftHomologyData
hr₁ : S₁.RightHomologyData
hl₂ : S₂.LeftHomologyData
hr₂ : S₂.RightHomologyData
h₁ : S₁.HomologyData
h₂ : S₂.HomologyData
F : C ⥤ D
inst✝³ : F.PreservesZeroMorphisms
inst✝² : S.HasHomology
inst✝¹ : F.PreservesLeftHomologyOf S
inst✝ : F.PreservesRightHomologyOf S
⊢ ((S.homologyData.right.map F).homologyIso ≪≫ F.mapIso S.homologyData.right.homologyIso.symm).hom =
    ((S.homologyData.left.map F).homologyIso ≪≫ F.mapIso S.homologyData.left.homologyIso.symm).hom
state_after: case w
C : Type u_1
D : Type u_2
inst✝⁸ : Category.{u_3, u_1} C
inst✝⁷ : Category.{u_4, u_2} D
inst✝⁶ : HasZeroMorphisms C
inst✝⁵ : HasZeroMorphisms D
S : ShortComplex C
h₁✝ : S.LeftHomologyData
h₂✝ : S.RightHomologyData
F✝ : C ⥤ D
inst✝⁴ : F✝.PreservesZeroMorphisms
hl : S.LeftHomologyData
hr : S.RightHomologyData
S₁ S₂ : ShortComplex C
φ : S₁ ⟶ S₂
hl₁ : S₁.LeftHomologyData
hr₁ : S₁.RightHomologyData
hl₂ : S₂.LeftHomologyData
hr₂ : S₂.RightHomologyData
h₁ : S₁.HomologyData
h₂ : S₂.HomologyData
F : C ⥤ D
inst✝³ : F.PreservesZeroMorphisms
inst✝² : S.HasHomology
inst✝¹ : F.PreservesLeftHomologyOf S
inst✝ : F.PreservesRightHomologyOf S
⊢ (((S.map F).homologyData.iso.hom ≫
          (rightHomologyMapIso' { hom := 𝟙 (S.map F), inv := 𝟙 (S.map F), hom_inv_id := ⋯, inv_hom_id := ⋯ }
              (S.map F).rightHomologyData (S.map F).homologyData.right).inv) ≫
        (rightHomologyMapIso' { hom := 𝟙 (S.map F), inv := 𝟙 (S.map F), hom_inv_id := ⋯, inv_hom_id := ⋯ }
            (S.map F).rightHomologyData (S.homologyData.right.map F)).hom) ≫
      F.map
        ((rightHomologyMapIso' { hom := 𝟙 S, inv := 𝟙 S, hom_inv_id := ⋯, inv_hom_id := ⋯ } S.rightHomologyData
              S.homologyData.right).inv ≫
          (rightHomologyMapIso' { hom := 𝟙 S, inv := 𝟙 S, hom_inv_id := ⋯, inv_hom_id := ⋯ } S.rightHomologyData
                S.homologyData.right).hom ≫
            S.homologyData.iso.inv) =
    ((leftHomologyMapIso' { hom := 𝟙 (S.map F), inv := 𝟙 (S.map F), hom_inv_id := ⋯, inv_hom_id := ⋯ }
            (S.map F).leftHomologyData (S.map F).homologyData.left).inv ≫
        (leftHomologyMapIso' { hom := 𝟙 (S.map F), inv := 𝟙 (S.map F), hom_inv_id := ⋯, inv_hom_id := ⋯ }
            (S.map F).leftHomologyData (S.homologyData.left.map F)).hom) ≫
      F.map
        ((leftHomologyMapIso' { hom := 𝟙 S, inv := 𝟙 S, hom_inv_id := ⋯, inv_hom_id := ⋯ } S.leftHomologyData
              S.homologyData.left).inv ≫
          (leftHomologyMapIso' { hom := 𝟙 S, inv := 𝟙 S, hom_inv_id := ⋯, inv_hom_id := ⋯ } S.leftHomologyData
              S.homologyData.left).hom)
tactic: dsimp only [Iso.trans, Iso.symm, Iso.refl, Functor.mapIso, RightHomologyData.homologyIso,
    rightHomologyIso, RightHomologyData.rightHomologyIso, LeftHomologyData.homologyIso,
    leftHomologyIso, LeftHomologyData.leftHomologyIso]
state_before: case w
C : Type u_1
D : Type u_2
inst✝⁸ : Category.{u_3, u_1} C
inst✝⁷ : Category.{u_4, u_2} D
inst✝⁶ : HasZeroMorphisms C
inst✝⁵ : HasZeroMorphisms D
S : ShortComplex C
h₁✝ : S.LeftHomologyData
h₂✝ : S.RightHomologyData
F✝ : C ⥤ D
inst✝⁴ : F✝.PreservesZeroMorphisms
hl : S.LeftHomologyData
hr : S.RightHomologyData
S₁ S₂ : ShortComplex C
φ : S₁ ⟶ S₂
hl₁ : S₁.LeftHomologyData
hr₁ : S₁.RightHomologyData
hl₂ : S₂.LeftHomologyData
hr₂ : S₂.RightHomologyData
h₁ : S₁.HomologyData
h₂ : S₂.HomologyData
F : C ⥤ D
inst✝³ : F.PreservesZeroMorphisms
inst✝² : S.HasHomology
inst✝¹ : F.PreservesLeftHomologyOf S
inst✝ : F.PreservesRightHomologyOf S
⊢ (((S.map F).homologyData.iso.hom ≫
          (rightHomologyMapIso' { hom := 𝟙 (S.map F), inv := 𝟙 (S.map F), hom_inv_id := ⋯, inv_hom_id := ⋯ }
              (S.map F).rightHomologyData (S.map F).homologyData.right).inv) ≫
        (rightHomologyMapIso' { hom := 𝟙 (S.map F), inv := 𝟙 (S.map F), hom_inv_id := ⋯, inv_hom_id := ⋯ }
            (S.map F).rightHomologyData (S.homologyData.right.map F)).hom) ≫
      F.map
        ((rightHomologyMapIso' { hom := 𝟙 S, inv := 𝟙 S, hom_inv_id := ⋯, inv_hom_id := ⋯ } S.rightHomologyData
              S.homologyData.right).inv ≫
          (rightHomologyMapIso' { hom := 𝟙 S, inv := 𝟙 S, hom_inv_id := ⋯, inv_hom_id := ⋯ } S.rightHomologyData
                S.homologyData.right).hom ≫
            S.homologyData.iso.inv) =
    ((leftHomologyMapIso' { hom := 𝟙 (S.map F), inv := 𝟙 (S.map F), hom_inv_id := ⋯, inv_hom_id := ⋯ }
            (S.map F).leftHomologyData (S.map F).homologyData.left).inv ≫
        (leftHomologyMapIso' { hom := 𝟙 (S.map F), inv := 𝟙 (S.map F), hom_inv_id := ⋯, inv_hom_id := ⋯ }
            (S.map F).leftHomologyData (S.homologyData.left.map F)).hom) ≫
      F.map
        ((leftHomologyMapIso' { hom := 𝟙 S, inv := 𝟙 S, hom_inv_id := ⋯, inv_hom_id := ⋯ } S.leftHomologyData
              S.homologyData.left).inv ≫
          (leftHomologyMapIso' { hom := 𝟙 S, inv := 𝟙 S, hom_inv_id := ⋯, inv_hom_id := ⋯ } S.leftHomologyData
              S.homologyData.left).hom)
state_after: case w
C : Type u_1
D : Type u_2
inst✝⁸ : Category.{u_3, u_1} C
inst✝⁷ : Category.{u_4, u_2} D
inst✝⁶ : HasZeroMorphisms C
inst✝⁵ : HasZeroMorphisms D
S : ShortComplex C
h₁✝ : S.LeftHomologyData
h₂✝ : S.RightHomologyData
F✝ : C ⥤ D
inst✝⁴ : F✝.PreservesZeroMorphisms
hl : S.LeftHomologyData
hr : S.RightHomologyData
S₁ S₂ : ShortComplex C
φ : S₁ ⟶ S₂
hl₁ : S₁.LeftHomologyData
hr₁ : S₁.RightHomologyData
hl₂ : S₂.LeftHomologyData
hr₂ : S₂.RightHomologyData
h₁ : S₁.HomologyData
h₂ : S₂.HomologyData
F : C ⥤ D
inst✝³ : F.PreservesZeroMorphisms
inst✝² : S.HasHomology
inst✝¹ : F.PreservesLeftHomologyOf S
inst✝ : F.PreservesRightHomologyOf S
⊢ (S.map F).homologyData.iso.hom ≫
      rightHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.right (S.homologyData.right.map F) ≫
        F.map S.homologyData.iso.inv =
    leftHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.left (S.homologyData.left.map F)
tactic: simp only [RightHomologyData.map_H, rightHomologyMapIso'_inv, rightHomologyMapIso'_hom, assoc,
    Functor.map_comp, RightHomologyData.map_rightHomologyMap', Functor.mapShortComplex_obj,
    Functor.map_id, LeftHomologyData.map_H, leftHomologyMapIso'_inv, leftHomologyMapIso'_hom,
    LeftHomologyData.map_leftHomologyMap', ← rightHomologyMap'_comp_assoc, ← leftHomologyMap'_comp,
    ← leftHomologyMap'_comp_assoc, id_comp]
state_before: case w
C : Type u_1
D : Type u_2
inst✝⁸ : Category.{u_3, u_1} C
inst✝⁷ : Category.{u_4, u_2} D
inst✝⁶ : HasZeroMorphisms C
inst✝⁵ : HasZeroMorphisms D
S : ShortComplex C
h₁✝ : S.LeftHomologyData
h₂✝ : S.RightHomologyData
F✝ : C ⥤ D
inst✝⁴ : F✝.PreservesZeroMorphisms
hl : S.LeftHomologyData
hr : S.RightHomologyData
S₁ S₂ : ShortComplex C
φ : S₁ ⟶ S₂
hl₁ : S₁.LeftHomologyData
hr₁ : S₁.RightHomologyData
hl₂ : S₂.LeftHomologyData
hr₂ : S₂.RightHomologyData
h₁ : S₁.HomologyData
h₂ : S₂.HomologyData
F : C ⥤ D
inst✝³ : F.PreservesZeroMorphisms
inst✝² : S.HasHomology
inst✝¹ : F.PreservesLeftHomologyOf S
inst✝ : F.PreservesRightHomologyOf S
⊢ (S.map F).homologyData.iso.hom ≫
      rightHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.right (S.homologyData.right.map F) ≫
        F.map S.homologyData.iso.inv =
    leftHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.left (S.homologyData.left.map F)
state_after: case w
C : Type u_1
D : Type u_2
inst✝⁸ : Category.{u_3, u_1} C
inst✝⁷ : Category.{u_4, u_2} D
inst✝⁶ : HasZeroMorphisms C
inst✝⁵ : HasZeroMorphisms D
S : ShortComplex C
h₁✝ : S.LeftHomologyData
h₂✝ : S.RightHomologyData
F✝ : C ⥤ D
inst✝⁴ : F✝.PreservesZeroMorphisms
hl : S.LeftHomologyData
hr : S.RightHomologyData
S₁ S₂ : ShortComplex C
φ : S₁ ⟶ S₂
hl₁ : S₁.LeftHomologyData
hr₁ : S₁.RightHomologyData
hl₂ : S₂.LeftHomologyData
hr₂ : S₂.RightHomologyData
h₁ : S₁.HomologyData
h₂ : S₂.HomologyData
F : C ⥤ D
inst✝³ : F.PreservesZeroMorphisms
inst✝² : S.HasHomology
inst✝¹ : F.PreservesLeftHomologyOf S
inst✝ : F.PreservesRightHomologyOf S
γ : HomologyMapData (𝟙 (S.map F)) (S.map F).homologyData (S.homologyData.map F)
⊢ (S.map F).homologyData.iso.hom ≫
      rightHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.right (S.homologyData.right.map F) ≫
        F.map S.homologyData.iso.inv =
    leftHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.left (S.homologyData.left.map F)
tactic: have γ : HomologyMapData (𝟙 (S.map F)) (map S F).homologyData (S.homologyData.map F) := default
state_before: case w
C : Type u_1
D : Type u_2
inst✝⁸ : Category.{u_3, u_1} C
inst✝⁷ : Category.{u_4, u_2} D
inst✝⁶ : HasZeroMorphisms C
inst✝⁵ : HasZeroMorphisms D
S : ShortComplex C
h₁✝ : S.LeftHomologyData
h₂✝ : S.RightHomologyData
F✝ : C ⥤ D
inst✝⁴ : F✝.PreservesZeroMorphisms
hl : S.LeftHomologyData
hr : S.RightHomologyData
S₁ S₂ : ShortComplex C
φ : S₁ ⟶ S₂
hl₁ : S₁.LeftHomologyData
hr₁ : S₁.RightHomologyData
hl₂ : S₂.LeftHomologyData
hr₂ : S₂.RightHomologyData
h₁ : S₁.HomologyData
h₂ : S₂.HomologyData
F : C ⥤ D
inst✝³ : F.PreservesZeroMorphisms
inst✝² : S.HasHomology
inst✝¹ : F.PreservesLeftHomologyOf S
inst✝ : F.PreservesRightHomologyOf S
γ : HomologyMapData (𝟙 (S.map F)) (S.map F).homologyData (S.homologyData.map F)
⊢ (S.map F).homologyData.iso.hom ≫
      rightHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.right (S.homologyData.right.map F) ≫
        F.map S.homologyData.iso.inv =
    leftHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.left (S.homologyData.left.map F)
state_after: case w
C : Type u_1
D : Type u_2
inst✝⁸ : Category.{u_3, u_1} C
inst✝⁷ : Category.{u_4, u_2} D
inst✝⁶ : HasZeroMorphisms C
inst✝⁵ : HasZeroMorphisms D
S : ShortComplex C
h₁✝ : S.LeftHomologyData
h₂✝ : S.RightHomologyData
F✝ : C ⥤ D
inst✝⁴ : F✝.PreservesZeroMorphisms
hl : S.LeftHomologyData
hr : S.RightHomologyData
S₁ S₂ : ShortComplex C
φ : S₁ ⟶ S₂
hl₁ : S₁.LeftHomologyData
hr₁ : S₁.RightHomologyData
hl₂ : S₂.LeftHomologyData
hr₂ : S₂.RightHomologyData
h₁ : S₁.HomologyData
h₂ : S₂.HomologyData
F : C ⥤ D
inst✝³ : F.PreservesZeroMorphisms
inst✝² : S.HasHomology
inst✝¹ : F.PreservesLeftHomologyOf S
inst✝ : F.PreservesRightHomologyOf S
γ : HomologyMapData (𝟙 (S.map F)) (S.map F).homologyData (S.homologyData.map F)
eq : γ.left.φH ≫ (S.homologyData.map F).iso.hom = (S.map F).homologyData.iso.hom ≫ γ.right.φH
⊢ (S.map F).homologyData.iso.hom ≫
      rightHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.right (S.homologyData.right.map F) ≫
        F.map S.homologyData.iso.inv =
    leftHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.left (S.homologyData.left.map F)
tactic: have eq := γ.comm
state_before: case w
C : Type u_1
D : Type u_2
inst✝⁸ : Category.{u_3, u_1} C
inst✝⁷ : Category.{u_4, u_2} D
inst✝⁶ : HasZeroMorphisms C
inst✝⁵ : HasZeroMorphisms D
S : ShortComplex C
h₁✝ : S.LeftHomologyData
h₂✝ : S.RightHomologyData
F✝ : C ⥤ D
inst✝⁴ : F✝.PreservesZeroMorphisms
hl : S.LeftHomologyData
hr : S.RightHomologyData
S₁ S₂ : ShortComplex C
φ : S₁ ⟶ S₂
hl₁ : S₁.LeftHomologyData
hr₁ : S₁.RightHomologyData
hl₂ : S₂.LeftHomologyData
hr₂ : S₂.RightHomologyData
h₁ : S₁.HomologyData
h₂ : S₂.HomologyData
F : C ⥤ D
inst✝³ : F.PreservesZeroMorphisms
inst✝² : S.HasHomology
inst✝¹ : F.PreservesLeftHomologyOf S
inst✝ : F.PreservesRightHomologyOf S
γ : HomologyMapData (𝟙 (S.map F)) (S.map F).homologyData (S.homologyData.map F)
eq : γ.left.φH ≫ (S.homologyData.map F).iso.hom = (S.map F).homologyData.iso.hom ≫ γ.right.φH
⊢ (S.map F).homologyData.iso.hom ≫
      rightHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.right (S.homologyData.right.map F) ≫
        F.map S.homologyData.iso.inv =
    leftHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.left (S.homologyData.left.map F)
state_after: case w
C : Type u_1
D : Type u_2
inst✝⁸ : Category.{u_3, u_1} C
inst✝⁷ : Category.{u_4, u_2} D
inst✝⁶ : HasZeroMorphisms C
inst✝⁵ : HasZeroMorphisms D
S : ShortComplex C
h₁✝ : S.LeftHomologyData
h₂✝ : S.RightHomologyData
F✝ : C ⥤ D
inst✝⁴ : F✝.PreservesZeroMorphisms
hl : S.LeftHomologyData
hr : S.RightHomologyData
S₁ S₂ : ShortComplex C
φ : S₁ ⟶ S₂
hl₁ : S₁.LeftHomologyData
hr₁ : S₁.RightHomologyData
hl₂ : S₂.LeftHomologyData
hr₂ : S₂.RightHomologyData
h₁ : S₁.HomologyData
h₂ : S₂.HomologyData
F : C ⥤ D
inst✝³ : F.PreservesZeroMorphisms
inst✝² : S.HasHomology
inst✝¹ : F.PreservesLeftHomologyOf S
inst✝ : F.PreservesRightHomologyOf S
γ : HomologyMapData (𝟙 (S.map F)) (S.map F).homologyData (S.homologyData.map F)
eq :
  leftHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.left (S.homologyData.map F).left ≫
      (S.homologyData.map F).iso.hom =
    (S.map F).homologyData.iso.hom ≫
      rightHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.right (S.homologyData.map F).right
⊢ (S.map F).homologyData.iso.hom ≫
      rightHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.right (S.homologyData.right.map F) ≫
        F.map S.homologyData.iso.inv =
    leftHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.left (S.homologyData.left.map F)
tactic: rw [← γ.left.leftHomologyMap'_eq, ← γ.right.rightHomologyMap'_eq] at eq
state_before: case w
C : Type u_1
D : Type u_2
inst✝⁸ : Category.{u_3, u_1} C
inst✝⁷ : Category.{u_4, u_2} D
inst✝⁶ : HasZeroMorphisms C
inst✝⁵ : HasZeroMorphisms D
S : ShortComplex C
h₁✝ : S.LeftHomologyData
h₂✝ : S.RightHomologyData
F✝ : C ⥤ D
inst✝⁴ : F✝.PreservesZeroMorphisms
hl : S.LeftHomologyData
hr : S.RightHomologyData
S₁ S₂ : ShortComplex C
φ : S₁ ⟶ S₂
hl₁ : S₁.LeftHomologyData
hr₁ : S₁.RightHomologyData
hl₂ : S₂.LeftHomologyData
hr₂ : S₂.RightHomologyData
h₁ : S₁.HomologyData
h₂ : S₂.HomologyData
F : C ⥤ D
inst✝³ : F.PreservesZeroMorphisms
inst✝² : S.HasHomology
inst✝¹ : F.PreservesLeftHomologyOf S
inst✝ : F.PreservesRightHomologyOf S
γ : HomologyMapData (𝟙 (S.map F)) (S.map F).homologyData (S.homologyData.map F)
eq :
  leftHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.left (S.homologyData.map F).left ≫
      (S.homologyData.map F).iso.hom =
    (S.map F).homologyData.iso.hom ≫
      rightHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.right (S.homologyData.map F).right
⊢ (S.map F).homologyData.iso.hom ≫
      rightHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.right (S.homologyData.right.map F) ≫
        F.map S.homologyData.iso.inv =
    leftHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.left (S.homologyData.left.map F)
state_after: case w
C : Type u_1
D : Type u_2
inst✝⁸ : Category.{u_3, u_1} C
inst✝⁷ : Category.{u_4, u_2} D
inst✝⁶ : HasZeroMorphisms C
inst✝⁵ : HasZeroMorphisms D
S : ShortComplex C
h₁✝ : S.LeftHomologyData
h₂✝ : S.RightHomologyData
F✝ : C ⥤ D
inst✝⁴ : F✝.PreservesZeroMorphisms
hl : S.LeftHomologyData
hr : S.RightHomologyData
S₁ S₂ : ShortComplex C
φ : S₁ ⟶ S₂
hl₁ : S₁.LeftHomologyData
hr₁ : S₁.RightHomologyData
hl₂ : S₂.LeftHomologyData
hr₂ : S₂.RightHomologyData
h₁ : S₁.HomologyData
h₂ : S₂.HomologyData
F : C ⥤ D
inst✝³ : F.PreservesZeroMorphisms
inst✝² : S.HasHomology
inst✝¹ : F.PreservesLeftHomologyOf S
inst✝ : F.PreservesRightHomologyOf S
γ : HomologyMapData (𝟙 (S.map F)) (S.map F).homologyData (S.homologyData.map F)
eq :
  leftHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.left (S.homologyData.left.map F) ≫
      F.map S.homologyData.iso.hom =
    (S.map F).homologyData.iso.hom ≫
      rightHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.right (S.homologyData.right.map F)
⊢ (S.map F).homologyData.iso.hom ≫
      rightHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.right (S.homologyData.right.map F) ≫
        F.map S.homologyData.iso.inv =
    leftHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.left (S.homologyData.left.map F)
tactic: dsimp at eq
state_before: case w
C : Type u_1
D : Type u_2
inst✝⁸ : Category.{u_3, u_1} C
inst✝⁷ : Category.{u_4, u_2} D
inst✝⁶ : HasZeroMorphisms C
inst✝⁵ : HasZeroMorphisms D
S : ShortComplex C
h₁✝ : S.LeftHomologyData
h₂✝ : S.RightHomologyData
F✝ : C ⥤ D
inst✝⁴ : F✝.PreservesZeroMorphisms
hl : S.LeftHomologyData
hr : S.RightHomologyData
S₁ S₂ : ShortComplex C
φ : S₁ ⟶ S₂
hl₁ : S₁.LeftHomologyData
hr₁ : S₁.RightHomologyData
hl₂ : S₂.LeftHomologyData
hr₂ : S₂.RightHomologyData
h₁ : S₁.HomologyData
h₂ : S₂.HomologyData
F : C ⥤ D
inst✝³ : F.PreservesZeroMorphisms
inst✝² : S.HasHomology
inst✝¹ : F.PreservesLeftHomologyOf S
inst✝ : F.PreservesRightHomologyOf S
γ : HomologyMapData (𝟙 (S.map F)) (S.map F).homologyData (S.homologyData.map F)
eq :
  leftHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.left (S.homologyData.left.map F) ≫
      F.map S.homologyData.iso.hom =
    (S.map F).homologyData.iso.hom ≫
      rightHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.right (S.homologyData.right.map F)
⊢ (S.map F).homologyData.iso.hom ≫
      rightHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.right (S.homologyData.right.map F) ≫
        F.map S.homologyData.iso.inv =
    leftHomologyMap' (𝟙 (S.map F)) (S.map F).homologyData.left (S.homologyData.left.map F)
state_after: no goals
tactic: simp only [← reassoc_of% eq, ← F.map_comp, Iso.hom_inv_id, F.map_id, comp_id]