∀ {C : Type u_1} {D : Type u_2} [inst : CategoryTheory.Category.{v_1, u_1} C]
  [inst_1 : CategoryTheory.Category.{v_2, u_2} D] [inst_2 : CategoryTheory.MonoidalCategory C]
  [inst_3 : CategoryTheory.MonoidalCategory.MonoidalRightAction C D] (x : D) {y z : C} (f : y ⟶ z)
  [inst_4 : CategoryTheory.IsIso f] {Z : D}
  (h : CategoryTheory.MonoidalCategory.MonoidalRightActionStruct.actionObj x y ⟶ Z),
  CategoryTheory.CategoryStruct.comp (CategoryTheory.MonoidalCategory.MonoidalRightActionStruct.actionHomRight x f)
      (CategoryTheory.CategoryStruct.comp
        (CategoryTheory.MonoidalCategory.MonoidalRightActionStruct.actionHomRight x (CategoryTheory.inv f)) h) =
    h