Wed, 07 Apr 2010 22:08:46 +0200 | Christian Urban | my final version of the paper | changeset | files |
Wed, 07 Apr 2010 17:37:29 +0200 | Christian Urban | added an induction principle for permutations; removed add_perm construction | changeset | files |
Tue, 06 Apr 2010 23:33:40 +0200 | Christian Urban | isarfied proof about existence of a permutation list | changeset | files |