Definition make_empty_cocone {J : category} (d : diagram empty_graph J) (j : J) : cocone d j. Proof. use make_cocone. - exact(empty_rect _). - exact(λ _ _, empty_rect _). 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.