| Sat, 22 Jan 2011 12:46:01 -0600 | Christian Urban | better version of Tutorial 1 | file | diff | annotate |
| Fri, 21 Jan 2011 22:58:03 +0100 | Christian Urban | better flow of proofs and definitions and proof | file | diff | annotate |
| Fri, 21 Jan 2011 22:02:34 +0100 | Christian Urban | substitution lemma in separate file | file | diff | annotate |