Fri, 01 Apr 2016 18:56:31 +0200 wenzelm tuned signature;
Fri, 01 Apr 2016 18:46:25 +0200 wenzelm required space is already part of Position.here;
Fri, 01 Apr 2016 18:43:54 +0200 wenzelm tuned messages;
Fri, 01 Apr 2016 18:32:52 +0200 wenzelm clarified errors -- disallow cartouche fragments as delimiter;
Fri, 01 Apr 2016 17:56:14 +0200 wenzelm tuned signature;
Fri, 01 Apr 2016 17:49:03 +0200 wenzelm tuned;
Fri, 01 Apr 2016 17:41:41 +0200 wenzelm clarified end position;
Fri, 01 Apr 2016 17:37:46 +0200 wenzelm tuned signature;
Fri, 01 Apr 2016 17:23:15 +0200 wenzelm tuned;
Fri, 01 Apr 2016 17:14:27 +0200 wenzelm removed redundant Position.set_range -- already done in Position.range;
Fri, 01 Apr 2016 17:13:40 +0200 wenzelm lower threshold -- command timing for proofs is cumulative, e.g. HOL 672 ~> 8889;
Fri, 01 Apr 2016 17:00:18 +0200 wenzelm less bulky timing information, e.g. HOL 56913 ~> 672;
Fri, 01 Apr 2016 16:32:20 +0200 wenzelm tuned;
Fri, 01 Apr 2016 16:31:54 +0200 wenzelm more operations (cf. Scala version);
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