proposition: Lemma fmoneE : fmone = FMonom [::].
proof: Proof. by apply/eqP; rewrite fmP /fmone fmE. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat) mathcomp(seq path choice finset fintype finfun) mathcomp(tuple bigop ssralg ssrint ssrnum) xfinmap