proposition: Lemma karatsubaE (p q : {poly R}) : karatsuba p q = p * q.
proof: Proof. exact: karatsuba_recE. Qed.
imports: mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat div seq) mathcomp(zmodp path choice fintype tuple finset ssralg) mathcomp(bigop poly polydiv)