proposition: Lemma Stern_bij1_gt1K x : 0 < x -> Stern_bij1 (Sba_p x) = xI (Stern_bij1 x).
proof: Proof. by move /Sba_p_pos /Stern_bij1_gt1;rewrite Sba_pK. 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)