∀ {C : Type u} [inst : CategoryTheory.Category.{v, u} C] [inst_1 : CategoryTheory.CartesianMonoidalCategory C]
  {X Y Z W : C} (f : X ⟶ Y) (g : X ⟶ Z) (h : Y ⟶ W),
  CategoryTheory.CategoryStruct.comp (CategoryTheory.CartesianMonoidalCategory.lift f g)
      (CategoryTheory.MonoidalCategoryStruct.whiskerRight h Z) =
    CategoryTheory.CartesianMonoidalCategory.lift (CategoryTheory.CategoryStruct.comp f h) g