fact: Definition invertible_to_cartesian_unique (h : a --> b₁ ⊗ b₂) (β : h ==> g) (δp : h · π₁ ==> f · π₁) (q : β ▹ π₁ = δp • (α ▹ π₁)) : isaprop (∑ (δ : h ==> f), δ ▹ π₁ = δp × δ • α = β).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.Invertible_2cells UniMath.Bicategories.Morphisms.InternalStreetFibration UniMath.Bicategories.Morphisms.InternalStreetOpFibration UniMath.Bicategories.Limits.Products