Thu, 07 Jan 2010 14:14:17 +0100 | Cezary Kaliszyk | The working proof of the special case. | file | diff | annotate |
Thu, 07 Jan 2010 10:55:20 +0100 | Cezary Kaliszyk | Reduced the proof to two simple but not obvious to prove facts. | file | diff | annotate |