fact: Definition is_cartesian_eq {B : bicat} {e b : B} {p : e --> b} {x : B} {f g : x --> e} (α : f ==> g) {β : f ==> g} (q : α = β) (Hα : is_cartesian_2cell_sfib p α) : is_cartesian_2cell_sfib p β.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.DisplayedCats.StreetFibration UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.Invertible_2cells UniMath.Bicategories.Core.Univalence