{C : Type u_1} →
  [inst : CategoryTheory.Category.{v_1, u_1} C] →
    [inst_1 : CategoryTheory.Preadditive C] →
      {S₁ S₂ S₃ : CategoryTheory.ShortComplex C} → S₁.HomotopyEquiv S₂ → S₂.HomotopyEquiv S₃ → S₁.HomotopyEquiv S₃