proposition: Lemma ssim1_congr_Star : forall a b, ssim1 a b -> ssim1 (Star a) (Star b).
proof: Proof. rewrite /ssim1 => a b; case/andP => h1 h2. by rewrite ssublStar ssubrStar h1 h2. Qed.
imports: Coq(RelationClasses Setoid Morphisms Permutation) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq fintype) mathcomp(bigop path) RegLang(languages) RegexpBrzozowski(regexp finite_der equiv)