∀ {R : Type u_1} {C : Type u_2} [inst : Semiring R] [inst_1 : CategoryTheory.Category.{v_1, u_2} C]
  [inst_2 : CategoryTheory.Preadditive C] [inst_3 : CategoryTheory.Linear R C] {S₁ S₂ : CategoryTheory.ShortComplex C}
  {φ : S₁ ⟶ S₂} {h₁ : S₁.RightHomologyData} {h₂ : S₂.RightHomologyData}
  (γ : CategoryTheory.ShortComplex.RightHomologyMapData φ h₁ h₂) (a : R), (γ.smul a).φQ = a • γ.φQ