proposition: Lemma Stern_bij_1: Stern_bij 1 = 1%N.
proof: Proof. by rewrite /Stern_bij Stern_bij1_1. 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)