fact: Definition vcomp_is_opcartesian_2cell_sopfib {B : bicat} {e b : B} (p : e --> b) {x : B} {f g h : x --> e} {α : f ==> g} {β : g ==> h} (Hα : is_opcartesian_2cell_sopfib p α) (Hβ : is_opcartesian_2cell_sopfib p β) : is_opcartesian_2cell_sopfib p (α • β).
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