∀ {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}
  (s : CategoryTheory.yoneda.obj X ⟶ A) (x : F.obj (Opposite.op (CategoryTheory.CostructuredArrow.mk s))),
  (CategoryTheory.OverPresheafAux.YonedaCollection.mk s x).snd = F.map (CategoryTheory.eqToHom ⋯) x