{C : Type u₁} →
  [inst : CategoryTheory.Category.{v₁, u₁} C] →
    {X : C} →
      {S : CategoryTheory.Sieve X} →
        {P : CategoryTheory.Functor Cᵒᵖ (Type v₁)} →
          CategoryTheory.Presieve.IsSheafFor P S.arrows → (S.functor ⟶ P) → (CategoryTheory.yoneda.obj X ⟶ P)