proposition: Lemma centerv_sub V : ('Z(V) <= V)%VS.
proof: Proof. exact: capvSl. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq path) mathcomp(choice fintype div tuple finfun bigop ssralg) mathcomp(finalg zmodp matrix vector poly)