proposition: Lemma stablemx_row_base : (stablemx (row_base V) f) = (stablemx V f).
proof: Proof. by apply: eqmx_stable; apply: eq_row_base. Qed.
imports: HB(structures) mathcomp(ssreflect ssrbool ssrfun eqtype ssrnat seq choice) mathcomp(fintype finfun bigop finset fingroup perm order) mathcomp(div prime binomial ssralg finalg zmodp matrix)