∀ (R : Type u_3) {C : Type u_2} [inst : Semiring R] [inst_1 : CategoryTheory.Category.{u_1, u_2} C]
  [inst_2 : CategoryTheory.Preadditive C] [inst_3 : CategoryTheory.Linear R C] (r : HomRel C)
  [inst_4 : CategoryTheory.Congruence r] (hr : ∀ (a : R) ⦃X Y : C⦄ (f₁ f₂ : X ⟶ Y), r f₁ f₂ → r (a • f₁) (a • f₂))
  [inst_5 : CategoryTheory.Preadditive (CategoryTheory.Quotient r)]
  [inst_6 : (CategoryTheory.Quotient.functor r).Additive] (X Y Z : CategoryTheory.Quotient r) (f : X ⟶ Y) (r_1 : R)
  (g : Y ⟶ Z), CategoryTheory.CategoryStruct.comp f (r_1 • g) = r_1 • CategoryTheory.CategoryStruct.comp f g