fact: Definition is_cartesian_to_is_opcartesian_sfib {B : bicat} {e b : B} {p : e --> b} {x : B} {f g : x --> e} {α : f ==> g} (Hα : @is_cartesian_2cell_sfib (op2_bicat B) e b p x g f α) : is_opcartesian_2cell_sopfib p α.
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