proposition: Lemma dim_refBaseField : \dim F1 = n.
proof: Proof. by rewrite F1unlock dim_baseVspace dimv1 mul1n. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq div) mathcomp(choice fintype tuple finfun bigop ssralg countalg) mathcomp(finalg zmodp matrix vector falgebra poly polydiv) mathcomp(mxpoly generic_quotient)