proposition: Lemma seq_eqv_max_rt r : ⦗max_elt r⦘ ⨾ r＊ ≡ ⦗max_elt r⦘.
proof: Proof. rewrite rtE; relsf; rewrite seq_eqv_max_t; relsf. Qed.
imports: HahnBase HahnList HahnSets HahnRelationsBasic HahnEquational HahnRewrite Arith Setoid