fact: Definition edgeless_lgraph : UAdjMatLG := @Build_LabeledGraph V E V_EqDec E_EqDec unit Z unit (@Build_PreGraph V E V_EqDec E_EqDec (fun v => 0 <= v < size) (fun e => False) fst snd) (fun v => tt) (fun e => inf) tt.
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