∀ {J : Type u₁} [inst : CategoryTheory.Category.{v₁, u₁} J] {C : Type u₃} [inst_1 : CategoryTheory.Category.{v₃, u₃} C]
  (F : CategoryTheory.Functor J C) {X Y : CategoryTheory.StructuredArrow F (CategoryTheory.Functor.const J)}
  (f : X ⟶ Y), ((CategoryTheory.Limits.Cocone.fromStructuredArrow F).map f).hom = f.right