Definition disp_functor_ff {C C'} {F} {D : disp_cat C} {D' : disp_cat C'} (FF : disp_functor F D D') := ∏ x y (xx : D x) (yy : D y) (f : x --> y), isweq (fun ff : xx -->[f] yy => ♯ FF ff).
Require Import UniMath.Foundations.Sets. Require Import UniMath.MoreFoundations.PartA. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Functors. Require Import UniMath.CategoryTheory.Core.Isos. Require Import UniMath.CategoryTheory.DisplayedCats.Core. Require Import UniMath.CategoryTheory.DisplayedCats.Isos.