fact: Fixpoint sort (g: EdgeListGG) (l: list EType) := match l with | nil => nil | h::t => insert g h (sort g t) end.
imports: VST.floyd.proofauto CertiGraph.lib.Coqlib CertiGraph.lib.EquivDec_ext CertiGraph.lib.List_ext CertiGraph.graph.graph_model CertiGraph.graph.graph_gen CertiGraph.graph.FiniteGraph CertiGraph.graph.undirected_graph