proposition: Lemma fdistX_dom_by : dominates R S -> dominates (fdistX R) (fdistX S).
proof: Proof. by move/dominatesP => H; apply/dominatesP => -[b a]; rewrite !fdistXE => /H. Qed.
imports: mathcomp(all_ssreflect ssralg fingroup perm matrix) mathcomp(all_algebra vector reals normedtype) mathcomp(mathcomp_extra boolp) mathcomp(Rstruct) ssrR logb realType_ext ssr_ext ssralg_ext bigop_ext