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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 *)
+(************************************************************************)
+(* Evgeny Makarov, INRIA, 2007 *)
+(************************************************************************)
+
+(*i $Id$ i*)
+
Require Import Bool. (* To get the orb and negb function *)
Require Export NStrongRec.