proposition: Lemma dsat0 (M : fmodel) (w:M) : dsatH w fset0.
proof: Proof. by rewrite /dsatH fset0Es. Qed.
imports: Relations mathcomp.ssreflect.ssreflect mathcomp(all_ssreflect) CompDecModal.libs(edone bcase fset base modular_hilbert sltype) CompDecModal.Kstar(Kstar_def)