Definition is_cartesian_2cell_sfib_factor_unique {x : B} {f g : x --> e} {γ : f ==> g} (Hγ : is_cartesian_2cell_sfib γ) (h : x --> e) (α : h ==> g) (δp : h · p ==> f · p) (q : α ▹ p = δp • (γ ▹ p)) (δ₁ δ₂ : h ==> f) (pδ₁ : δ₁ ▹ p = δp) (pδ₂ : δ₂ ▹ p = δp) (δγ₁ : δ₁ • γ = α) (δγ₂ : δ₂ • γ = α) : δ₁ = δ₂.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Isos. Require Import UniMath.CategoryTheory.DisplayedCats.StreetFibration. Require Import UniMath.Bicategories.Core.Bicat. Import Bicat.Notations. Require Import UniMath.Bicategories.Core.Invertible_2cells. Require Import UniMath.Bicategories.Core.Univalence.