∀ {C : Type u} [inst : CategoryTheory.Category.{v, u} C] {F : CategoryTheory.Functor Cᵒᵖ (Type (max v w))} {X : Cᵒᵖ}
  (x : F.obj X),
  CategoryTheory.Subfunctor.ofSection x = CategoryTheory.Subfunctor.range (CategoryTheory.uliftYonedaEquiv.symm x)