∀ {C : Type u_1} [inst : CategoryTheory.Category.{u_2, u_1} C] {X : C} {S : CategoryTheory.Sieve X}
  [inst_1 : CategoryTheory.LocallySmall.{u_3, u_2, u_1} C] {F : CategoryTheory.Functor Cᵒᵖ (Type u_3)}
  (x : { x // x.Compatible }),
  (fun t => ⟨fun Y f hf => t.app (Opposite.op Y) ⟨CategoryTheory.shrinkYonedaObjObjEquiv.symm f, ⋯⟩, ⋯⟩)
      ((fun t => { app := fun X_1 f => ↑t (CategoryTheory.shrinkYonedaObjObjEquiv ↑f) ⋯, naturality := ⋯ }) x) =
    x