Section OneRepresentation.
Variable gT : finGroupType.
Variables (G : {group gT}) (n : nat) (rG : mx_representation F G n).
Arguments rG _%group_scope : extra scopes.
Local Notation E_G := (enveloping_algebra_mx rG).
Canonical rstabs_group := Group rstabs_group_set.
Definition mxmodule := G \subset rstabs.

Lemma mxmoduleP : reflect {in G, forall x, U *m rG x <= U}%MS mxmodule.