proposition: Lemma Stern_ge0 n: 0 <= Stern n.
proof: Proof. apply:divr_ge0; apply: ler0n. Qed.
imports: mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat) mathcomp(seq choice fintype order bigop ssralg) mathcomp(div ssrnum ssrint rat prime path binomial) mathcomp(tuple finset) gaia(fibm)