∀ {C : Type u} {inst : CategoryTheory.Category.{v, u} C} {inst_1 : CategoryTheory.MonoidalCategory C}
  [self : CategoryTheory.MarkovCategory C] {X Y : C} (f : X ⟶ Y) {Z : C}
  (h : CategoryTheory.MonoidalCategoryStruct.tensorUnit C ⟶ Z),
  CategoryTheory.CategoryStruct.comp f (CategoryTheory.CategoryStruct.comp CategoryTheory.ComonObj.counit h) =
    CategoryTheory.CategoryStruct.comp CategoryTheory.ComonObj.counit h