proposition: Lemma adde_elabel_new: elabel UAdjMatGG_adde (u,v) = w.
proof: Proof. intros. simpl. unfold update_elabel, equiv_dec. destruct E_EqDec. auto. unfold complement, equiv in c. contradiction. Qed.
imports: VST.floyd.proofauto CertiGraph.lib.EquivDec_ext CertiGraph.lib.List_ext CertiGraph.lib.find_lemmas CertiGraph.graph.graph_model CertiGraph.graph.graph_gen CertiGraph.graph.graph_relation CertiGraph.graph.undirected_graph CertiGraph.graph.MathAdjMatGraph