proposition: Lemma fsdist_eval_affine (x : A) : affine (fsdist_eval x).
proof: Proof. by move=> a b p; rewrite /fsdist_eval fsdist_convE. Qed.
imports: HB(structures) mathcomp(all_ssreflect ssralg ssrnum) mathcomp(finmap) Reals mathcomp(mathcomp_extra) mathcomp(classical_sets boolp cardinality Rstruct reals) mathcomp(ereal topology esum measure probability) ssrR realType_ext Reals_ext ssr_ext ssralg_ext bigop_ext fdist convex