proposition: Lemma integral_nat n : integralOver RtoK n%:R.
proof: Proof. by rewrite -(rmorph_nat RtoK); apply: integral_id. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat choice seq) mathcomp(div fintype tuple finfun bigop fingroup perm) mathcomp(ssralg zmodp matrix mxalgebra poly polydiv)