∀ {C : Type u} [inst : CategoryTheory.Category.{v, u} C] [inst_1 : CategoryTheory.Limits.HasZeroMorphisms C]
  {S₁ S₂ : CategoryTheory.ShortComplex C} (φ : S₁ ⟶ S₂) [inst_2 : S₁.HasHomology] [inst_3 : S₂.HasHomology],
  CategoryTheory.CategoryStruct.comp (CategoryTheory.ShortComplex.homologyMap (CategoryTheory.ShortComplex.opMap φ))
      S₁.homologyOpIso.hom =
    CategoryTheory.CategoryStruct.comp S₂.homologyOpIso.hom (CategoryTheory.ShortComplex.homologyMap φ).op