proposition: Proposition transportf_object_cartesian_lift {C : category} {D : disp_cat C} (HD : cleaving D) {x : C} (xx : D x) {f g : x --> x} (p : f = g) (ff : xx -->[ identity x ] object_of_cartesian_lift _ _ (HD x x f xx)) : transportf (λ (h : x --> x), _ -->[ identity x ] object_of_cartesian_lift _ _ (HD x x h xx)) p ff = cartesian_factorisation (HD x x g xx) _ (ff ;; transportf (λ z, _ -->[ z ] _) p (HD x x f xx))%mor_disp.
proof: Proof. induction p ; cbn. use (cartesian_factorisation_unique (HD x x f xx)). rewrite cartesian_factorisation_commutes. apply idpath. Qed.
imports: UniMath.Foundations.Sets UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Categories.HSET.Core UniMath.CategoryTheory.Categories.HSET.MonoEpiIso UniMath.CategoryTheory.Categories.HSET.Univalence UniMath.CategoryTheory.Limits.Pullbacks UniMath.CategoryTheory.Adjunctions.Core UniMath.CategoryTheory.Equivalences.Core UniMath.CategoryTheory.FunctorCategory UniMath.CategoryTheory.opp_precat UniMath.CategoryTheory.Presheaf UniMath.CategoryTheory.DisplayedCats.Core UniMath.CategoryTheory.DisplayedCats.Functors UniMath.CategoryTheory.DisplayedCats.NaturalTransformations UniMath.CategoryTheory.DisplayedCats.Fiber UniMath.CategoryTheory.DisplayedCats.Isos UniMath.CategoryTheory.DisplayedCats.Univalence UniMath.CategoryTheory.DisplayedCats.Examples.Opposite