Definition cell_to_pb_obj_pr2 {a b₁ b₂ b₃ : B} {f : b₁ --> b₃} {g : b₂ --> b₃} {h₁ h₂ : a --> f /≃ g} (α : h₁ · π₁ ==> h₂ · π₁) (β : h₁ · π₂ ==> h₂ · π₂) (p : cell_to_pb_obj_homot α β) : cell_to_pb_obj α β p ▹ π₂ = β.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.Bicategories.Core.Bicat. Import Bicat.Notations. Require Import UniMath.Bicategories.Core.Unitors. Require Import UniMath.Bicategories.Core.BicategoryLaws. Require Import UniMath.Bicategories.Core.Invertible_2cells. Require Import UniMath.Bicategories.Limits.Pullbacks.