Definition make_unit_diagram {C : category} (point : C) : diagram unit_graph C. Proof. use make_diagram. - exact(unit_rect _ point). - 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.