| Thu, 22 May 2008 16:34:41 +0200 | urbanc | made the naming of the induction principles consistent: weak_induct is | file | diff | annotate |
| Fri, 16 May 2008 22:35:25 +0200 | urbanc | added a lemma about existence of contexts | file | diff | annotate |
| Fri, 02 May 2008 02:16:10 +0200 | urbanc | tuned some proofs and comments | file | diff | annotate |