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(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
(* v * Copyright INRIA, CNRS and contributors *)
(* <O___,, * (see version control and CREDITS file for authors & dates) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(* * (see LICENSE file for the text of the license) *)
(************************************************************************)
module type S =
sig
type t
val compare : t -> t -> int
end
module Pair (M:S) (N:S) : S with type t = M.t * N.t
module UnorderedPair (M:S) : S with type t = M.t * M.t
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