∀ {C : Type u_2} [inst : CategoryTheory.Category.{u_1, u_2} C] [inst_1 : CategoryTheory.CartesianMonoidalCategory C]
  {M X : C} [inst_2 : CategoryTheory.MonObj M] (n : ℕ) (x : X ⟶ M), npowRecAuto (n + 1) x = npowRecAuto n x * x