∀ {C : Type u} [inst : CategoryTheory.Category.{v, u} C] [inst_1 : CategoryTheory.MonoidalCategory C] {X Y : C}
  (f : X = Y) (Z : C),
  CategoryTheory.MonoidalCategoryStruct.whiskerRight (CategoryTheory.eqToHom f) Z = CategoryTheory.eqToHom ⋯