proposition: Lemma enum_set0 : enum (set0 : {set T}) = [::].
proof: Proof. by rewrite enum_set0. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat choice seq) mathcomp(path fintype tuple bigop finset div prime finfun) mathcomp(finset)