Thu, 12 Dec 2013 23:18:47 +0100 wenzelm merged
Thu, 12 Dec 2013 22:56:28 +0100 wenzelm discontinued legacy_isub_isup;
Thu, 12 Dec 2013 22:38:25 +0100 wenzelm clarified Trace_Ops: global theory data avoids init of simpset in Pure.thy, which is important to act as neutral element in merge;
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