proposition: Lemma lt_than_psi : forall a b n c a' b', gcons a b n c t2< [a',b'] -> [a,b]t2<[a',b'].
proof: Proof. inversion_clear 1;try lt_clean;auto with T2. 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)