fact: Definition is_cartesian_2cell_invertible_unique {h : x --> a} {γ : h ==> g₂} {δp : h · f₂ ==> g₁ · f₂} (q : γ ▹ f₂ = δp • (α ▹ f₂)) : isaprop (∑ (δ : h ==> g₁), δ ▹ f₂ = δp × δ • α = γ).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.Invertible_2cells UniMath.Bicategories.Core.Unitors UniMath.Bicategories.Core.BicategoryLaws UniMath.Bicategories.Core.EquivToAdjequiv UniMath.Bicategories.Morphisms.Adjunctions UniMath.Bicategories.Morphisms.FullyFaithful UniMath.Bicategories.Morphisms.DiscreteMorphisms UniMath.Bicategories.Morphisms.InternalStreetFibration