| Tue, 04 Jan 2011 15:32:56 -0800 | huffman | change some lemma names containing 'UU' to 'bottom' | changeset | files |
| Tue, 04 Jan 2011 15:03:27 -0800 | huffman | renamed constant 'UU' to 'bottom', keeping 'UU' as alternative input syntax; | changeset | files |
| Mon, 03 Jan 2011 17:10:32 +0100 | boehmes | merged | changeset | files |