∀ {C : Type u_1} [inst : CategoryTheory.Category.{u_2, u_1} C] {B : C} (x x_1 : CategoryTheory.MonoOver B)
  (motive : Quotient.mk'' x ≤ Quotient.mk'' x_1 → Prop) (x_2 : Quotient.mk'' x ≤ Quotient.mk'' x_1),
  (∀ (j : x ⟶ x_1), motive ⋯) → motive x_2