Sun, 09 Nov 2014 17:04:14 +0100 wenzelm proper context for match_tac etc.;
Sun, 09 Nov 2014 14:08:00 +0100 wenzelm proper context for compose_tac, Splitter.split_tac (relevant for unify trace options);
Sun, 09 Nov 2014 11:05:20 +0100 nipkow avoid erule and rotated in IMP
Sun, 09 Nov 2014 10:03:18 +0100 haftmann reverted 1ebf0a1f12a4 after successful re-tuning of simp rules for divisibility
Sun, 09 Nov 2014 10:03:17 +0100 haftmann self-contained simp rules for dvd on numerals
Sat, 08 Nov 2014 16:53:26 +0100 haftmann equivalence rules for structures without zero divisors
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