fact: Definition cell_of_pb_disc_sopfib_mor : invertible_2cell φ (mor_of_pb_disc_sopfib_mor · χ) := inv_of_invertible_2cell (pb_ump_mor_pr2 Hχ mor_of_pb_disc_sopfib_mor_cone).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.Invertible_2cells UniMath.Bicategories.Core.Unitors UniMath.Bicategories.Core.BicategoryLaws UniMath.Bicategories.Core.Univalence UniMath.Bicategories.Core.Discreteness UniMath.Bicategories.Core.TransportLaws UniMath.Bicategories.Morphisms.FullyFaithful UniMath.Bicategories.Morphisms.InternalStreetFibration UniMath.Bicategories.Morphisms.InternalStreetOpFibration UniMath.Bicategories.Morphisms.DiscreteMorphisms UniMath.Bicategories.Morphisms.Properties.ClosedUnderPullback UniMath.Bicategories.DisplayedBicats.Examples.DisplayMapBicatSlice UniMath.Bicategories.Logic.DisplayMapBicat UniMath.Bicategories.Limits.Pullbacks UniMath.Bicategories.Limits.PullbackFunctions