Wed, 25 Feb 2009 09:09:50 -0800 | huffman | add lemmas about comparisons of Fract a b with 0 and 1 | changeset | files |
Wed, 25 Feb 2009 07:14:33 -0800 | huffman | merged | changeset | files |
Wed, 25 Feb 2009 06:53:15 -0800 | huffman | add lemma diff_Suc_1 | changeset | files |