Tue, 03 Apr 2012 14:09:37 +0200 | huffman | add floor/ceiling lemmas suggested by René Thiemann | changeset | files |
Tue, 03 Apr 2012 08:55:06 +0200 | nipkow | made sure that " is shown in tutorial text | changeset | files |
Mon, 02 Apr 2012 21:26:46 +0100 | Christian Urban | merged | changeset | files |
Mon, 02 Apr 2012 21:26:07 +0100 | Christian Urban | tuned proofs | changeset | files |