proposition: Lemma disp_functor_ff_inv_transportf {x y : C} {f f' : x --> y} (e : f = f') {xx : D x} {yy : D y} (ff : FF _ xx -->[#F f] FF _ yy) : disp_functor_ff_inv (transportf _ (maponpaths (# F) e) ff) = transportf _ e (disp_functor_ff_inv ff).
proof: Proof. induction e. apply idpath. Qed.
imports: UniMath.Foundations.Sets UniMath.MoreFoundations.PartA UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.DisplayedCats.Core UniMath.CategoryTheory.DisplayedCats.Isos