| Thu, 28 Jul 2011 17:52:36 +0000 | urbanc | added a picture | file | diff | annotate |
| Tue, 26 Jul 2011 18:12:07 +0000 | urbanc | more on the section about derivatives | file | diff | annotate |
| Mon, 25 Jul 2011 13:33:38 +0000 | urbanc | made the theories compatible with the existing developments in the AFP; old theories are in the directory Attic | file | diff | annotate |