fact: Definition cgraph_forget_map (G : cgraph) : hSet := make_hSet (node G) (isaset_node G).
imports: UniMath.Foundations.PartA UniMath.Foundations.Sets UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Categories.HSET.Core UniMath.Combinatorics.CGraph