∀ {C : Type u_1} {A : Type u_3} [inst : CategoryTheory.Category.{v_1, u_1} C] [inst_1 : CategoryTheory.HasShift C ℤ]
  [inst_2 : CategoryTheory.Category.{v_3, u_3} A] (F : CategoryTheory.Functor C A)
  [inst_3 : CategoryTheory.Limits.HasZeroObject C] [inst_4 : CategoryTheory.Preadditive C]
  [inst_5 : ∀ (n : ℤ), (CategoryTheory.shiftFunctor C n).Additive] [inst_6 : CategoryTheory.Pretriangulated C]
  [inst_7 : CategoryTheory.Abelian A] [F.IsHomological] [inst_9 : F.ShiftSequence ℤ],
  ∀ T ∈ CategoryTheory.Pretriangulated.distinguishedTriangles,
    ∀ (n₀ n₁ : ℤ) (h : n₀ + 1 = n₁), (F.homologySequenceComposableArrows₅ T n₀ n₁ h).Exact