proposition: Lemma vspaceOver_refBase V : vspaceOver F1 (baseVspace V) =i V.
proof: Proof. move=> v; rewrite mem_vspaceOver field_module_eq ?baseVspace_module //. by rewrite mem_baseVspace. 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)