fact: Definition id_right_disp {C} {D : disp_cat C} {x y} {f : x --> y} {xx : D x} {yy} (ff : xx -->[f] yy) : ff ;; id_disp _ = transportb _ (id_right _) ff := pr1 (pr2 (pr2 D)) _ _ _ _ _ _.
imports: UniMath.Foundations.Sets UniMath.Foundations.PartD UniMath.MoreFoundations.PartA UniMath.MoreFoundations.AxiomOfChoice UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.whiskering