proposition: Theorem le_trans : forall alpha beta gamma, alpha t2<= beta -> beta t2<= gamma -> alpha t2<= gamma.
proof: Proof. destruct 1. - subst beta;auto. - intros;right;eapply lt_le_trans;eauto. Qed.
imports: Coq(Arith List Lia Compare_dec Relations Wellfounded RelationClasses) hydras(Epsilon0) hydras(More_Arith Restriction) hydras(ON_Generic) hydras(rpo.term rpo.rpo) hydras(T2) hydras(Compat815)