proposition: Lemma exprz_pintl m n (hn : 0 <= n) : m%:~R ^ n = (m ^ n)%:~R :> R.
proof: Proof. by rewrite exprz_pMzl // exp1rz. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat choice seq) mathcomp(fintype finfun bigop order ssralg countalg ssrnum) mathcomp(poly)