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1 (**************************************************************************)
2 (*       ___                                                              *)
3 (*      ||M||                                                             *)
4 (*      ||A||       A project by Andrea Asperti                           *)
5 (*      ||T||                                                             *)
6 (*      ||I||       Developers:                                           *)
7 (*      ||T||         The HELM team.                                      *)
8 (*      ||A||         http://helm.cs.unibo.it                             *)
9 (*      \   /                                                             *)
10 (*       \ /        This file is distributed under the terms of the       *)
11 (*        v         GNU General Public License Version 2                  *)
12 (*                                                                        *)
13 (**************************************************************************)
14
15
16 include "coq.ma".
17
18
19 (* commento che va nell'ast, ma non viene contato
20     come step perche' non e' un executable
21 *)
22
23 alias num (instance 0) = "natural number".
24 alias symbol "eq" (instance 0) = "Coq's leibnitz's equality".
25 theorem a:0=0.
26
27 (* nota *)
28 (**
29
30
31 apply Prop.
32 *)
33 apply cic:/Coq/Init/Logic/eq.ind#xpointer(1/1/1). 
34
35 (* commenti che non devono essere colorati perche'
36    non c'e' nulla di eseguibile dopo di loro
37 *)
38 qed.