Tue, 06 Sep 2011 21:11:12 +0200 wenzelm merged
Tue, 06 Sep 2011 10:30:33 -0700 huffman merged
Tue, 06 Sep 2011 10:30:00 -0700 huffman simplify proof of tan_half, removing unused assumptions
Tue, 06 Sep 2011 09:56:09 -0700 huffman convert some proofs to Isar-style
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -4 +4 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip