proposition: Lemma pack_vK (x : VT) : x \in vset G -> fsval (pack_v x) = x.
proof: Proof. move => Vx. by rewrite pack_vE. 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)