∀ (C : Type u_2) [inst : CategoryTheory.Category.{u_1, u_2} C] [inst_1 : CategoryTheory.MonoidalCategory C]
  [inst_2 : CategoryTheory.BraidedCategory C],
  CategoryTheory.CategoryStruct.comp
      {
        f :=
          CategoryTheory.CategoryStruct.id
            (CategoryTheory.MonoidalCategoryStruct.tensorUnit (CategoryTheory.Center C)).fst,
        comm := ⋯ }
      {
        f :=
          CategoryTheory.CategoryStruct.id
            ((CategoryTheory.Center.ofBraided C).obj (CategoryTheory.MonoidalCategoryStruct.tensorUnit C)).fst,
        comm := ⋯ } =
    CategoryTheory.CategoryStruct.id (CategoryTheory.MonoidalCategoryStruct.tensorUnit (CategoryTheory.Center C))