Definition comp_disp {C: precategory_data} {D : disp_cat_data C} {x y z : C} {f : x --> y} {g : y --> z} {xx : D x} {yy} {zz} (ff : xx -->[f] yy) (gg : yy -->[g] zz) : xx -->[f · g] zz := pr2 (pr2 D) _ _ _ _ _ _ _ _ ff gg.
Require Import UniMath.Foundations.Sets. Require Import UniMath.Foundations.PartD. Require Import UniMath.MoreFoundations.PartA. Require Import UniMath.MoreFoundations.AxiomOfChoice. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Isos. Require Import UniMath.CategoryTheory.Core.NaturalTransformations. Require Import UniMath.CategoryTheory.Core.Univalence. Require Import UniMath.CategoryTheory.Core.Functors. Require Import UniMath.CategoryTheory.whiskering.