Thu, 09 Aug 2012 14:37:43 +0200 wenzelm refined recovery of scan errors: longest prefix of delimited token after failure, otherwise just one symbol;
Thu, 09 Aug 2012 14:09:36 +0200 wenzelm explicit FIXME;
Thu, 09 Aug 2012 12:39:05 +0200 wenzelm tuned signature;
Wed, 08 Aug 2012 22:14:39 +0200 haftmann corrected header
Wed, 08 Aug 2012 20:35:34 +0200 wenzelm refined isabelle mkroot;
Wed, 08 Aug 2012 17:49:56 +0200 wenzelm simplified session specifications: names are taken verbatim and current directory is default;
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