Fri, 07 Mar 2008 13:53:03 +0100 haftmann clarified proposition
Fri, 07 Mar 2008 13:53:02 +0100 haftmann tuned proofs
Fri, 07 Mar 2008 13:53:01 +0100 haftmann canonical order on option type
Fri, 07 Mar 2008 13:53:00 +0100 haftmann added entries
Thu, 06 Mar 2008 23:30:36 +0100 wenzelm check ISABELLE_BROWSER_INFO before cd;
Thu, 06 Mar 2008 21:53:29 +0100 wenzelm replaced execute by system_out;
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