proposition: Lemma cantor n : n < 2 ^n.
proof: Proof. exact: (ltn_expl n (ltnSn 1)). Qed.
imports: mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat) mathcomp(seq path fintype div bigop binomial) mathcomp(prime finset ssralg ssrnum ssrint)