proposition: Lemma cent_centerv V : (V <= 'C('Z(V)))%VS.
proof: Proof. by rewrite centvC capvSr. 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)