| Thu, 12 Jul 2012 10:11:32 +0100 | Christian Urban | streamlined definition of alpha-equivalence for single binders (used flip instead of swap) | file | diff | annotate |
| Mon, 04 Jun 2012 21:39:51 +0100 | Christian Urban | added permutation simplification to the simplifier; this makes the simplifier more powerful, but it potentially loops more often | file | diff | annotate |