proposition: Lemma WellFounded_trans_clos `(WF : WellFounded A R) : WellFounded (clos_trans A R).
proof: Proof. apply wf_clos_trans. apply WF. Defined.
imports: Coq(Wf_nat Relations) Coq(Wellfounded Relation_Definitions) Coq(Relation_Operators Lexicographic_Product Wf_nat) Equations(Init Signature) Equations.CoreTactics Equations.Prop.Classes Equations.Prop.EqDec Equations.Prop.DepElim Equations.Prop.Constants