--- /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/setoids/Zsetoid".
+
+include "CoRN.ma".
+
+(* $Id: Zsetoid.v,v 1.5 2004/04/07 15:08:08 lcf Exp $ *)
+
+include "model/structures/Zsec.ma".
+
+include "algebra/CSetoidFun.ma".
+
+(*#* **Example of a setoid: [Z]
+*** [Z]
+*)
+
+inline "cic:/CoRN/model/setoids/Zsetoid/ap_Z_irreflexive.con".
+
+inline "cic:/CoRN/model/setoids/Zsetoid/ap_Z_symmetric.con".
+
+inline "cic:/CoRN/model/setoids/Zsetoid/ap_Z_cotransitive.con".
+
+inline "cic:/CoRN/model/setoids/Zsetoid/ap_Z_tight.con".
+
+inline "cic:/CoRN/model/setoids/Zsetoid/ap_Z_is_apartness.con".
+
+inline "cic:/CoRN/model/setoids/Zsetoid/Z_as_CSetoid.con".
+
+(*#* The term [Z_as_CSetoid] is of type [CSetoid]. Hence we have proven that [Z] is a constructive setoid.
+***Addition
+We will prove now that the addition on the integers is a setoid function.
+*)
+
+inline "cic:/CoRN/model/setoids/Zsetoid/Zplus_wd.con".
+
+inline "cic:/CoRN/model/setoids/Zsetoid/Zplus_strext.con".
+
+inline "cic:/CoRN/model/setoids/Zsetoid/Zplus_is_bin_fun.con".
+
+(*#* What's more: the addition is also associative and commutative.
+*)
+
+inline "cic:/CoRN/model/setoids/Zsetoid/Zplus_is_assoc.con".
+
+inline "cic:/CoRN/model/setoids/Zsetoid/Zplus_is_commut.con".
+
+(*#* ***Opposite
+Taking the opposite of an integer is a setoid function.
+*)
+
+inline "cic:/CoRN/model/setoids/Zsetoid/Zopp_wd.con".
+
+inline "cic:/CoRN/model/setoids/Zsetoid/Zopp_strext.con".
+
+inline "cic:/CoRN/model/setoids/Zsetoid/Zopp_is_fun.con".
+
+(*#* ***Multiplication
+Finally the multiplication is a setoid function and is associative and commutative.
+*)
+
+inline "cic:/CoRN/model/setoids/Zsetoid/Zmult_wd.con".
+
+inline "cic:/CoRN/model/setoids/Zsetoid/Zmult_strext.con".
+
+inline "cic:/CoRN/model/setoids/Zsetoid/Zmult_is_bin_fun.con".
+
+inline "cic:/CoRN/model/setoids/Zsetoid/Zmult_is_assoc.con".
+
+inline "cic:/CoRN/model/setoids/Zsetoid/Zmult_is_commut.con".
+