| Mon, 28 Feb 2005 13:10:36 +0100 |
paulson |
unfold theorems for trancl and rtrancl
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| Sun, 27 Feb 2005 00:00:40 +0100 |
dixon |
lucas - added more comments and an extra type to clarify the code.
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| Wed, 23 Feb 2005 15:19:00 +0100 |
berghofe |
Modified node_trans to avoid duplication of signature stamps
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| Wed, 23 Feb 2005 15:00:03 +0100 |
webertj |
exception SAME removed
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| Wed, 23 Feb 2005 14:04:53 +0100 |
webertj |
major code change: refute can now handle recursion and axiomatic type classes; 3-valued logic with two kinds of equality; some bugfixes
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| Wed, 23 Feb 2005 10:23:22 +0100 |
nipkow |
suminf -> \<Sum>
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| Tue, 22 Feb 2005 18:42:22 +0100 |
dixon |
Lucas - fixed bug in zero_var_indexes: it was ignoring vars in the flex-flex pairs. These are now taken into account.
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| Tue, 22 Feb 2005 13:05:47 +0100 |
paulson |
removed redundant lemmas and simprules
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| Tue, 22 Feb 2005 10:54:30 +0100 |
nipkow |
more setsum tuning
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| Mon, 21 Feb 2005 19:23:46 +0100 |
nipkow |
more fine tuniung
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| Mon, 21 Feb 2005 18:04:28 +0100 |
nipkow |
fixed proof
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| Mon, 21 Feb 2005 15:57:45 +0100 |
nipkow |
removed superfluous setsum_constant
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| Mon, 21 Feb 2005 15:04:10 +0100 |
nipkow |
comprehensive cleanup, replacing sumr by setsum
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| Sat, 19 Feb 2005 18:44:34 +0100 |
dixon |
lucas - re-arranged code and added comments. Also added check to make sure the subgoal that we are being applied to exists. If it does not, empty seq is returned.
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