proposition: Lemma vfun_bodyEinj (G : graph2) (H : pre_graph) (graph_H : is_graph H) (h : bij (pack (open G)) (pack H)) (x : G) : vfun_body h (inj_v x) = val (h (Sub (inj_v x) (inj_v_open x))).
proof: Proof. by rewrite vfun_bodyE. Qed.
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)