Fri, 04 Feb 2011 17:11:00 +0100 wenzelm parallelization of nested Isar proofs is subject to Goal.parallel_proofs_threshold;
Fri, 04 Feb 2011 16:33:12 +0100 wenzelm Task_Queue.update_timing: more precise treatment of interruptibility;
Fri, 04 Feb 2011 16:29:47 +0100 wenzelm Lazy.force_result: more standard treatment of interruptibility, potentially addressing races of exceptions vs. interrupts;
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