∀ {C : Type u} [inst : CategoryTheory.Category.{v, u} C] [inst_1 : CategoryTheory.Limits.HasZeroMorphisms C]
  {S₁ S₂ : CategoryTheory.ShortComplex C} {φ : S₁ ⟶ S₂} {h₁ : S₁.HomologyData} {h₂ : S₂.HomologyData}
  (γ : CategoryTheory.ShortComplex.HomologyMapData φ h₁ h₂),
  CategoryTheory.ShortComplex.homologyMap' φ h₁ h₂ = γ.left.φH