proposition: Lemma monalgOver1 : 1 \in monalgOver S.
proof: Proof. by rewrite monalgOverC rpred1. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat) mathcomp(seq path choice finset fintype finfun) mathcomp(tuple bigop ssralg ssrint ssrnum) xfinmap