2011-06-02 | urbanc | updated theories and itp-paper | file | diff | annotate |
2011-05-18 | urbanc | added directory for journal version; took uptodate version of the theory files | file | diff | annotate |
2010-10-19 | urbanc | added a file about the easy closure properties of regular sets (the difficult parts, like complement, are missing) | file | diff | annotate |