Tue, 29 Sep 2009 14:59:24 +0200 wenzelm open_unsynchronized for interactive Isar loop;
Tue, 29 Sep 2009 11:49:22 +0200 wenzelm explicit indication of Unsynchronized.ref;
Tue, 29 Sep 2009 11:48:32 +0200 wenzelm Raw ML references as unsynchronized state variables.
Mon, 28 Sep 2009 23:51:13 +0200 wenzelm Dummy version of state variables -- plain refs for sequential access.
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