fact: Definition rincl_fin l m := (forall x, In x m -> In x M -> In x l) /\ exists x, ~ In x m /\ In x l /\ In x M.
imports: Arith List Wellfounded Undecidability.Shared.Libs.DLW.Utils(php) Undecidability.Shared.Libs.DLW.Wf(acc_irr measure_ind wf_chains)