| Thu, 30 Jul 2009 15:51:51 +0200 | Christian Urban | polished the package chapter used FOCUS to explain the subproofs | file | diff | annotate |
| Thu, 30 Jul 2009 11:38:52 +0200 | Christian Urban | made changes for SUBPROOF and sat_tac | file | diff | annotate |
| Tue, 28 Jul 2009 12:11:33 +0200 | Christian Urban | slightly changed exercises about rev_sum | file | diff | annotate |