fact: Definition empty_Graph (default_v: DV) (default_e: DE) (default_g : DG) : Graph := Build_GeneralGraph _ _ _ _ (empty_labeledgraph (fun e => fst e) (fun e => null) default_v default_e default_g) empty_sound.
imports: CertiGraph.lib.Ensembles_ext Coq.Lists.List VST.msl.seplog VST.msl.log_normalize CertiGraph.lib.Coqlib CertiGraph.lib.EquivDec_ext CertiGraph.msl_ext.log_normalize CertiGraph.msl_ext.iter_sepcon CertiGraph.msl_ext.seplog CertiGraph.graph.graph_model CertiGraph.graph.path_lemmas CertiGraph.graph.reachable_computable CertiGraph.graph.reachable_ind CertiGraph.graph.subgraph2 CertiGraph.graph.graph_gen CertiGraph.graph.BinGraph CertiGraph.graph.MathGraph CertiGraph.graph.FiniteGraph CertiGraph.msl_application.Graph Coq.Logic.Classical