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(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
(* \VV/ **************************************************************)
(* // * The HELM Project / The EU MoWGLI Project *)
(* * University of Bologna *)
(************************************************************************)
(* This file is distributed under the terms of the *)
(* GNU Lesser General Public License Version 2.1 *)
(* *)
(* Copyright (C) 2000-2004, HELM Team. *)
(* http://helm.cs.unibo.it *)
(************************************************************************)
exception CanNotUnshare;;
(* [unshare t] gives back a copy of t where all sharing has been removed *)
(* Physical equality becomes meaningful on unshared terms. Hashtables that *)
(* use physical equality can now be used to associate information to evey *)
(* node of the term. *)
val unshare: ?already_unshared:('a -> bool) -> 'a -> 'a
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