fact: Definition slice_is_cartesian_1cell {c₁ c₂ : B} {s : c₁ --> c₂} {t₁ : slice_disp_bicat a c₁} {t₂ : slice_disp_bicat a c₂} (ss : t₁ -->[ s ] t₂) : cartesian_1cell (slice_disp_bicat a) ss.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.whiskering UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.Invertible_2cells UniMath.Bicategories.Core.Univalence UniMath.Bicategories.Core.BicategoryLaws UniMath.Bicategories.Core.Unitors UniMath.Bicategories.Core.EquivToAdjequiv UniMath.CategoryTheory.DisplayedCats.Core UniMath.Bicategories.DisplayedBicats.DispBicat UniMath.Bicategories.DisplayedBicats.DispInvertibles UniMath.Bicategories.DisplayedBicats.CleavingOfBicat UniMath.Bicategories.DisplayedBicats.Examples.LaxSlice UniMath.Bicategories.DisplayedBicats.Examples.Slice