proposition: Lemma seqmul_size (s1 s2 : seq R) : size (seqmul s1 s2) = minn (size s1) (size s2).
proof: Proof. by rewrite /seqmul size_map size_zip. Qed.
imports: mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq path choice fintype order) mathcomp(prime div bigop ssralg poly polydiv polyorder ssrnum zmodp) mathcomp(polyrcf qe_rcf_th complex)