(* This file is copied from RamifyCoq project. *)
Require Coq.Setoids.Setoid.
Require Export Coq.Classes.Equivalence.
Require Export Coq.Sets.Ensembles.

(* Specifications: *)
Lemma Full_set_spec: forall A (v: A), Full_set A v <-> True.
Lemma Empty_set_spec: forall A (v: A), Empty_set A v <-> False.
intros.