∀ {C : Type u_2} [inst : CategoryTheory.Category.{u_1, u_2} C] [inst_1 : CategoryTheory.Limits.HasZeroMorphisms C]
  {S₁ S₂ : CategoryTheory.ShortComplex Cᵒᵖ} {φ : S₁ ⟶ S₂} {h₁ : S₁.LeftHomologyData} {h₂ : S₂.LeftHomologyData}
  (ψ : CategoryTheory.ShortComplex.LeftHomologyMapData φ h₁ h₂),
  CategoryTheory.CategoryStruct.comp ψ.φH.unop h₁.unop.ι = CategoryTheory.CategoryStruct.comp h₂.unop.ι ψ.φK.unop