From: Claudio Sacerdoti Coen <claudio.sacerdoticoen@unibo.it>
Date: Sat, 9 Jul 2005 07:56:59 +0000 (+0000)
Subject: New test suite for generalize.
X-Git-Tag: pre_notation~63
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=a97fe0b74f4442f934b60fc34ff843789c299481;p=helm.git

New test suite for generalize.
The last test fails because of a weakness of apply.
---

diff --git a/helm/matita/tests/generalize.ma b/helm/matita/tests/generalize.ma
new file mode 100644
index 000000000..a6e56ef3e
--- /dev/null
+++ b/helm/matita/tests/generalize.ma
@@ -0,0 +1,36 @@
+(**************************************************************************)
+(*       ___	                                                            *)
+(*      ||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                  *)
+(*                                                                        *)
+(**************************************************************************)
+
+set "baseuri" "cic:/matita/generalize".
+
+alias num (instance 0) = "natural number".
+alias symbol "eq" (instance 0) = "leibnitz's equality".
+alias symbol "plus" (instance 0) = "natural plus".
+alias id "plus_comm" = "cic:/Coq/Arith/Plus/plus_comm.con".
+alias id "S" = "cic:/Coq/Init/Datatypes/nat.ind#xpointer(1/1/2)".
+
+(* This tests is for the case of a pattern that contains metavariables *)
+theorem t: \forall x. x + 4 = 4 + x.
+ intro.
+ generalize in match (S ?).
+ intro; apply plus_comm.
+qed. 
+ 
+(* This test used to fail because x was used in the wrong context *)
+(* Once this was fixed it still did not work since apply is not   *)
+(* able to solve a goal that ends in a product.                   *)
+theorem test2: \forall x. x + 4 = 4 + x.
+ generalize in match 4.
+ exact plus_comm.
+qed.
\ No newline at end of file