fact: Definition bicat_invertible_2cell_is_op1_bicat_invertible_2cell {C : bicat} {X Y : op1_bicat C} (f g : X --> Y) : @invertible_2cell C Y X f g ≃ invertible_2cell f g.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.opp_precat UniMath.CategoryTheory.PrecategoryBinProduct UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.Invertible_2cells UniMath.Bicategories.Morphisms.Adjunctions