Sat, 25 Jul 2009 14:18:26 +0200 wenzelm enqueue: maintain transitive closure, which simplifies dequeue_towards;
Sat, 25 Jul 2009 13:15:53 +0200 wenzelm ML_Context.the_generic_context;
Sat, 25 Jul 2009 12:43:45 +0200 wenzelm eliminated redundant Library.multiply;
Sat, 25 Jul 2009 10:31:27 +0200 wenzelm renamed structure Display_Goal to Goal_Display;
Sat, 25 Jul 2009 00:53:47 +0200 wenzelm tuned tracing;
Sat, 25 Jul 2009 00:39:05 +0200 wenzelm added Multithreading.real_time;
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