fact: Definition uf_set_in (g: PreGraph Vertex Edge) (s: uf_set) : Prop := (Same_set s (Empty_set Vertex)) \/ (exists rt, s rt /\ forall x, s x <-> uf_root g x rt).
imports: CertiGraph.lib.Coqlib CertiGraph.lib.EquivDec_ext CertiGraph.lib.List_ext CertiGraph.lib.Ensembles_ext CertiGraph.lib.EnumEnsembles CertiGraph.graph.graph_model CertiGraph.graph.path_lemmas CertiGraph.graph.graph_gen CertiGraph.graph.MathGraph CertiGraph.graph.LstGraph CertiGraph.graph.FiniteGraph CertiGraph.graph.reachable_computable