Thu, 03 Jul 2008 19:02:33 +0200 huffman fixed extremely slow proof of Chain_inits_DiffI
Thu, 03 Jul 2008 18:16:40 +0200 huffman add Infinite_Set and Zorn back in (since they are no longer included in main HOL image)
(0) -10000 -3000 -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip