proposition: Lemma integral_div x y : integralOver FtoE x -> integralOver FtoE y -> integralOver FtoE (x / y).
proof: Proof. by move=> algFx /integral_inv; apply: integral_mul. 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)