fact: Definition pack := Eval hnf in point pack' (Sub (p_in G) (@p_inP _ _ _ _)) (Sub (p_out G) (@p_outP _ _ _ _)).
imports: Coq(Relation_Definitions Morphisms RelationClasses) mathcomp(all_ssreflect) GraphTheory(edone finite_quotient preliminaries bij equiv) GraphTheory(setoid_bigop structures pttdom mgraph mgraph2) GraphTheory(rewriting open_confluence finmap_plus)