proposition: Lemma rdivpp : rdivp d d = 1.
proof: Proof. by case: (monic_comreg mond) => hc hr; rewrite rdivpp // (eqP mond) expr1n. Qed.
imports: mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq choice) mathcomp(fintype bigop ssralg poly)