fact: Definition is_right_extension {h : y --> z} (τ : g · h ==> f) : UU := ∏ (k : y --> z), isweq (λ (θ : k ==> h), (g ◃ θ) • τ).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Prelude UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.Examples.OpMorBicat UniMath.Bicategories.Core.Examples.OpCellBicat