fact: Fixpoint valid_path' (g: Gph) (p: list E) : Prop := match p with | nil => True | n :: nil => strong_evalid g n | n1 :: ((n2 :: _) as p') => strong_evalid g n1 /\ dst g n1 = src g n2 /\ valid_path' g p' end.
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