Fri, 05 Feb 1999 21:03:33 +0100 wenzelm improved msg;
Fri, 05 Feb 1999 21:03:06 +0100 wenzelm use_thy, update_thy: Context.save;
Fri, 05 Feb 1999 21:02:17 +0100 wenzelm tuned;
Fri, 05 Feb 1999 21:01:53 +0100 wenzelm time_use made pervasive;
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