Tue, 17 Nov 2009 14:51:32 +0100 wenzelm implicit name space grouping for theory/local_theory transactions;
Tue, 17 Nov 2009 14:50:55 +0100 wenzelm uniform new_group/reset_group;
Tue, 17 Nov 2009 14:48:21 +0100 wenzelm eliminated dead code;
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