proposition: Lemma mkAnd_CVoid_lt : forall r, mkAnd CVoid r = CVoid.
proof: Proof. by []. Qed.
imports: Coq(RelationClasses Setoid Morphisms) HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq fintype) mathcomp(bigop path) RegLang(languages) RegexpBrzozowski(glue regexp finite_der equiv)