From 5b7eafd0f00a16d78f99a27f5c7d5a0de77dc7e6 Mon Sep 17 00:00:00 2001
From: Stephane Glondu <steph@glondu.net>
Date: Wed, 21 Jul 2010 09:46:51 +0200
Subject: Imported Upstream snapshot 8.3~beta0+13298

---
 plugins/setoid_ring/NArithRing.v | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 plugins/setoid_ring/NArithRing.v

(limited to 'plugins/setoid_ring/NArithRing.v')

diff --git a/plugins/setoid_ring/NArithRing.v b/plugins/setoid_ring/NArithRing.v
new file mode 100644
index 00000000..0ba519fd
--- /dev/null
+++ b/plugins/setoid_ring/NArithRing.v
@@ -0,0 +1,21 @@
+(************************************************************************)
+(*  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        *)
+(************************************************************************)
+
+Require Export Ring.
+Require Import BinPos BinNat.
+Import InitialRing.
+
+Set Implicit Arguments.
+
+Ltac Ncst t :=
+  match isNcst t with
+    true => t
+  | _ => constr:NotConstant
+  end.
+
+Add Ring Nr : Nth (decidable Neq_bool_ok, constants [Ncst]).
-- 
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