| Thu, 30 Jul 2009 15:51:51 +0200 | Christian Urban | polished the package chapter used FOCUS to explain the subproofs | file | diff | annotate |
| Wed, 29 Apr 2009 00:36:14 +0200 | Christian Urban | slight polishing | file | diff | annotate |
| Wed, 01 Apr 2009 12:26:56 +0100 | Christian Urban | more work on the simple inductive chapter | file | diff | annotate |