proposition: Lemma ler_pMz2r n (hn : 0 < n) : {mono *~%R^~ n :x y / x <= y :> R}.
proof: Proof. by move=> x y; case: n hn=> [[]|] // n _; rewrite ler_pMn2r. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat choice seq) mathcomp(fintype finfun bigop order ssralg countalg ssrnum) mathcomp(poly)