Definition transportf_disp_mor2 {D : twosided_disp_cat_data} {x₁ x₂ : C₁} {y₁ y₂ : C₂} {xy₁ : D x₁ y₁} {xy₂ : D x₂ y₂} {f₁ f₂ : x₁ --> x₂} (p : f₁ = f₂) {g₁ g₂ : y₁ --> y₂} (q : g₁ = g₂) (fg : xy₁ -->[ f₁ ][ g₁ ] xy₂) : xy₁ -->[ f₂ ][ g₂ ] xy₂ := transportf (λ z, _ -->[ z ][ _ ] _) p (transportf (λ z, _ -->[ _ ][ z ] _) q fg).
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.DisplayedCats.Core. Require Import UniMath.CategoryTheory.PrecategoryBinProduct.