∀ {C : Type u} [inst : CategoryTheory.Category.{v, u} C] {A : CategoryTheory.Functor Cᵒᵖ (Type v)}
  {F : CategoryTheory.Functor (CategoryTheory.CostructuredArrow CategoryTheory.yoneda A)ᵒᵖ (Type v)} {X : C}
  {p q : CategoryTheory.OverPresheafAux.YonedaCollection F X} (h : p.fst = q.fst),
  F.map (CategoryTheory.eqToHom ⋯) q.snd = p.snd → p = q