fact: Definition is_cartesian_2cell_sfib {x : B} {f g : x --> e} (γ : f ==> g) : UU := ∏ (h : x --> e) (α : h ==> g) (δp : h · p ==> f · p) (q : α ▹ p = δp • (γ ▹ p)), ∃! (δ : h ==> f), δ ▹ p = δp × δ • γ = α.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.DisplayedCats.StreetFibration UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.Invertible_2cells UniMath.Bicategories.Core.Univalence