proposition: Lemma mmap1_id n (R : ringType) m : mmap1 (fun i => 'X_i) m = 'X_[m] :> {mpoly R[n]}.
proof: Proof. by rewrite mpolyXE_id. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq path) mathcomp(choice fintype tuple finfun bigop finset binomial) mathcomp(order fingroup perm ssralg zmodp poly ssrint) mathcomp(matrix vector) mathcomp(bigenough) ssrcomplements freeg