Mon, 15 Jun 2009 10:58:05 +0200 wenzelm merged
Mon, 15 Jun 2009 09:43:30 +0200 haftmann made SML/NJ happy
Mon, 15 Jun 2009 08:16:09 +0200 haftmann skip_proof not operative here
Mon, 15 Jun 2009 08:16:08 +0200 haftmann where there is nothing, nothing can be hidden
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