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+(************************************************************************)
+(*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
+(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
+(*   \VV/  **************************************************************)
+(*    //   *      This file is distributed under the terms of the       *)
+(*         *       GNU Lesser General Public License Version 2.1        *)
+(************************************************************************)
+
+(*i $Id: gset.mli,v 1.3.16.1 2004/07/16 19:30:30 herbelin Exp $ i*)
+
+(* Sets using the generic comparison function of ocaml. Same interface as
+   the module [Set] from the ocaml standard library. *)
+
+type 'a t
+
+val empty : 'a t
+val is_empty : 'a t -> bool
+val mem : 'a -> 'a t -> bool
+val add : 'a -> 'a t -> 'a t
+val singleton : 'a -> 'a t
+val remove : 'a -> 'a t -> 'a t
+val union : 'a t -> 'a t -> 'a t
+val inter : 'a t -> 'a t -> 'a t
+val diff : 'a t -> 'a t -> 'a t
+val compare : 'a t -> 'a t -> int
+val equal : 'a t -> 'a t -> bool
+val subset : 'a t -> 'a t -> bool
+val iter : ('a -> unit) -> 'a t -> unit
+val fold : ('a -> 'a -> 'a) -> 'a t -> 'a -> 'a
+val cardinal : 'a t -> int
+val elements : 'a t -> 'a list
+val min_elt : 'a t -> 'a
+val max_elt : 'a t -> 'a
+val choose : 'a t -> 'a