proposition: Lemma Zeckp_1: Zeckp 1 = 1.
proof: Proof. by rewrite /Zeckp Zeck_1 /Zeck_valp big_cons big_nil. Qed.
imports: mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat) mathcomp(seq path fintype div bigop binomial) mathcomp(prime finset ssralg ssrnum ssrint)