proposition: Lemma card_min_rep2m m: card_min_rep 2 m = (m==1).
proof: Proof. by rewrite /card_min_rep big_nat1 Zeck_1 eq_sym. Qed.
imports: mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat) mathcomp(seq path fintype div bigop binomial) mathcomp(prime finset ssralg ssrnum ssrint)