fact: Definition inv2cell_to_z_iso_isweq {a b : B} (f g : hom a b) : isweq (@inv2cell_to_z_iso _ _ f g).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors UniMath.Bicategories.Core.Bicat