proposition: Lemma msym_fundamental_un (t1 t2 : {mpoly R[n]}) : t1 \mPo S = t2 \mPo S -> t1 = t2.
proof: Proof. move/eqP; rewrite -subr_eq0 -raddfB /= => /eqP. by move/msym_fundamental_un0/eqP; rewrite subr_eq0=> /eqP. 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