Definition multispan_graph (X : UU) : graph. Proof. use make_graph. - exact(X ⨿ unit). - use coprod_rect. + exact(λ _ _, empty). + apply unit_rect. apply coprod_rect. * exact(λ _, unit). * exact(λ _, empty). Defined.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Limits.Graphs.Colimits. Require Import UniMath.Combinatorics.StandardFiniteSets. Require Import UniMath.Combinatorics.FiniteSets.