English
There is an equivalence between isomorphisms in CommBialgCat and BialgEquiv between the underlying X and Y.
Русский
Существует эквиваленция между изоморфизмами в CommBialgCat и BialgEquiv между базовыми X и Y.
LaTeX
$$$ (\mathrm{Iso}(\mathrm{CommBialgCat})(\mathrm{of}\,R X, \mathrm{of}\,R Y)) \simeq (X \simeq_{\mathrm{R-bialg}} Y)$$$
Lean4
/-- Bialgebra equivalences between `Bialgebra`s are the same as isomorphisms in `CommBialgCat`. -/
@[simps]
def isoEquivBialgEquiv : (of R X ≅ of R Y) ≃ (X ≃ₐc[R] Y)
where
toFun := bialgEquivOfIso
invFun := isoMk
left_inv _ := rfl
right_inv _ := rfl