fact: Definition eq_is_invertible_2cell {B : bicat} {a b : B} {f g : a --> b} {α β : f ==> g} (p : α = β) (Hα : is_invertible_2cell α) : is_invertible_2cell β.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors UniMath.Bicategories.Core.Bicat