fact: Definition cgraph_precategory_data : precategory_data := make_precategory_data cgraph_precategory_ob_mor (λ G : cgraph, cgraph_mor_id G) (λ G H K : cgraph, @cgraph_mor_comp G H K).
imports: UniMath.Foundations.PartA UniMath.Foundations.Sets UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Categories.HSET.Core UniMath.Combinatorics.CGraph