∀ (C : Type u_1) [inst : CategoryTheory.Category.{u_2, u_1} C] [inst_1 : CategoryTheory.MonoidalCategory C]
  (X : Cᴹᵒᵖᴹᵒᵖ),
  (CategoryTheory.MonoidalCategoryStruct.leftUnitor
        ((CategoryTheory.MonoidalOpposite.mopMopEquivalence C).functor.obj X)).inv =
    CategoryTheory.CategoryStruct.comp
      ((CategoryTheory.MonoidalOpposite.mopMopEquivalence C).functor.map
        (CategoryTheory.MonoidalCategoryStruct.leftUnitor X).inv)
      (CategoryTheory.CategoryStruct.comp
        (CategoryTheory.CategoryStruct.id
          ((CategoryTheory.MonoidalOpposite.mopMopEquivalence C).functor.obj
            (CategoryTheory.MonoidalCategoryStruct.tensorObj (CategoryTheory.MonoidalCategoryStruct.tensorUnit Cᴹᵒᵖᴹᵒᵖ)
              X)))
        (CategoryTheory.MonoidalCategoryStruct.whiskerRight
          (CategoryTheory.CategoryStruct.id
            ((CategoryTheory.MonoidalOpposite.mopMopEquivalence C).functor.obj
              (CategoryTheory.MonoidalCategoryStruct.tensorUnit Cᴹᵒᵖᴹᵒᵖ)))
          ((CategoryTheory.MonoidalOpposite.mopMopEquivalence C).functor.obj X)))