Sun, 15 Feb 2009 17:47:49 +0100 wenzelm tuned;
Sat, 14 Feb 2009 22:58:30 +0100 wenzelm added Isar/VM mode transition diagram;
Sat, 14 Feb 2009 21:37:04 +0100 wenzelm replaced 'assm' by 'assume' -- regular 'assume' is default, if inference is omitted;
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