Mon, 29 Jul 2013 20:34:53 +0200 wenzelm updated key bindings to execution range;
Mon, 29 Jul 2013 19:55:38 +0200 wenzelm traverse node on change of "required" state;
Mon, 29 Jul 2013 18:59:58 +0200 wenzelm keep memo_exec execution running, which is important to cancel goal forks eventually;
Mon, 29 Jul 2013 16:52:04 +0200 wenzelm maintain explicit execution frontier: avoid conflict with former task via static dependency;
Mon, 29 Jul 2013 16:01:05 +0200 wenzelm afford higher execution priority by default: defer proofs and thus stretch parallelism over whole document;
Mon, 29 Jul 2013 15:59:47 +0200 wenzelm clarified conditions for node traversal;
Mon, 29 Jul 2013 15:20:02 +0200 wenzelm tuned;
Mon, 29 Jul 2013 15:09:20 +0200 wenzelm pro-forma Goal.reset_futures, despite lack of final join/commit;
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