proposition: Lemma mleadDl (p1 p2 : {mpoly R[n]}) : (mlead p2 < mlead p1)%O -> mlead (p1 + p2) = mlead p1.
proof: Proof. by move/mleadDr; rewrite addrC => ->. 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