fact: Definition precgraph_precategory_data : precategory_data := make_precategory_data precgraph_precategory_ob_mor cgraph_mor_id (@cgraph_mor_comp).
imports: UniMath.Foundations.PartA UniMath.Foundations.Sets UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Categories.HSET.Core UniMath.Combinatorics.CGraph