fact: Definition Subpath (g: Gph) (p1 p2: path): Prop := incl (snd p1) (snd p2) /\ In_path g (fst p1) p2.
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