{C : Type u_3} →
  [inst : CategoryTheory.Category.{u_2, u_3} C] →
    {F : CategoryTheory.Functor C (Type u_1)} →
      (motive : F.Elements → Sort u_4) → (x : F.Elements) → ((X : C) → (x : F.obj X) → motive ⟨X, x⟩) → motive x