--- /dev/null
+(**************************************************************************)
+(* ___ *)
+(* ||M|| *)
+(* ||A|| A project by Andrea Asperti *)
+(* ||T|| *)
+(* ||I|| Developers: *)
+(* ||T|| The HELM team. *)
+(* ||A|| http://helm.cs.unibo.it *)
+(* \ / *)
+(* \ / This file is distributed under the terms of the *)
+(* v GNU General Public License Version 2 *)
+(* *)
+(**************************************************************************)
+
+(* This file was automatically generated: do not edit *********************)
+
+set "baseuri" "cic:/matita/CoRN-Decl/model/semigroups/Nsemigroup".
+
+include "CoRN.ma".
+
+(* $Id: Nsemigroup.v,v 1.6 2004/04/08 08:20:34 lcf Exp $ *)
+
+include "model/setoids/Nsetoid.ma".
+
+include "algebra/CSemiGroups.ma".
+
+(*#* **Example of a semi-group: $\langle$#⟨#[nat],[[+]]$\rangle$#⟩#
+*)
+
+(*#* Because addition is associative, the natural numbers form a CSemiGroup.
+*)
+
+inline "cic:/CoRN/model/semigroups/Nsemigroup/nat_as_CSemiGroup.con".
+