fact: Definition isaprop_internal_sopfib {B : bicat} (HB_2_1 : is_univalent_2_1 B) {e b : B} (p : e --> b) : isaprop (internal_sopfib p).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.Invertible_2cells UniMath.Bicategories.Core.Examples.OpCellBicat UniMath.Bicategories.Core.Univalence UniMath.Bicategories.Core.UnivalenceOp UniMath.Bicategories.Morphisms.InternalStreetFibration