∀ {C : Type u_1} {ι : Type u_2} [inst : CategoryTheory.Category.{v_1, u_1} C]
  [inst_1 : CategoryTheory.Category.{v_2, u_2} ι] [inst_2 : CategoryTheory.Abelian C]
  (X : CategoryTheory.Abelian.SpectralObject C ι) {i₀ i₁ : ι} (f : i₀ ⟶ i₁) (n₀ n₀_1 : ℤ) (e_n₀ : n₀ = n₀_1) (n₁ : ℤ)
  (hn₁ : n₀ + 1 = n₁), X.opcyclesIsoH f n₀ n₁ hn₁ = X.opcyclesIsoH f n₀_1 n₁ ⋯