fact: Definition good_path (g: Gph) (P : Ensemble V) : (path -> Prop) := fun p => valid_path g p /\ path_prop g P p.
imports: Coq.Logic.ProofIrrelevance Coq.micromega.Lia CertiGraph.lib.Coqlib CertiGraph.lib.EnumEnsembles CertiGraph.lib.List_ext CertiGraph.lib.EquivDec_ext CertiGraph.graph.graph_model Coq.Lists.List Coq.Lists.ListDec