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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 set "baseuri" "cic:/matita/tests/decompose".
16 include "legacy/coq.ma".
17 alias symbol "and" (instance 0) = "Coq's logical and".
18 alias symbol "or" (instance 0) = "Coq's logical or".
19
20
21
22 theorem stupid: 
23   \forall a,b,c:Prop.
24   (a \land c \lor b \land c) \to (c \land (b \lor a)).
25   intros.decompose H.split.assumption.right.assumption.
26   split.assumption.left.assumption.qed.
27
28