∀ {C : Type u} [inst : CategoryTheory.Category.{v, u} C] [inst_1 : CategoryTheory.Limits.HasZeroObject C]
  [inst_2 : CategoryTheory.Preadditive C] {X : C} (R : CategoryTheory.InjectiveResolution X) (n : ℤ) (k : ℕ)
  (h : ↑k = n), R.cochainComplexXIso n k h = R.cochainComplexXIso n k h