proposition: Lemma map_enveloping_algebra_mx : (enveloping_algebra_mx rG)^f = enveloping_algebra_mx rGf.
proof: Proof. by apply/row_matrixP=> i; rewrite -map_row !rowK map_mxvec. Qed.
imports: HB(structures) mathcomp(ssreflect ssrbool ssrfun eqtype ssrnat seq path) mathcomp(div choice fintype tuple finfun bigop prime) mathcomp(ssralg poly polydiv finset fingroup morphism) mathcomp(perm automorphism quotient finalg action zmodp) mathcomp(commutator cyclic center pgroup matrix mxalgebra) mathcomp(mxpoly)