∀ {C : Type u_2} [inst : CategoryTheory.Category.{u_1, u_2} C] [inst_1 : CategoryTheory.Preadditive C]
  [inst_2 : CategoryTheory.CartesianMonoidalCategory C] [inst_3 : CategoryTheory.BraidedCategory C]
  (x : CategoryTheory.CommGrp C),
  CategoryTheory.CategoryStruct.comp CategoryTheory.MonObj.one
      (CategoryTheory.Iso.refl
          (((CategoryTheory.CommGrp.forget C).comp (CategoryTheory.Preadditive.toCommGrp C)).obj x).X).hom =
    CategoryTheory.MonObj.one