Wed, 22 Sep 2010 22:25:21 +0200 wenzelm Snapshot.convert/revert: explicit error report to isolate sporadic crash;
Wed, 22 Sep 2010 22:15:36 +0200 wenzelm make compiler doubly sure;
Wed, 22 Sep 2010 22:14:25 +0200 wenzelm isabelle-process: less verbose no-commit mode;
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