proposition: Lemma linear0l : f 0 z = 0.
proof: Proof. by rewrite -applyrE raddf0. Qed.
imports: HB(structures) mathcomp(all_ssreflect ssralg fingroup zmodp poly ssrnum) mathcomp(matrix mxalgebra vector falgebra ssrnum algC algnum) mathcomp(fieldext) mathcomp(vector)