| Tue, 26 Feb 2013 13:24:40 +0000 | Christian Urban | tuned some files | file | diff | annotate | 
| Tue, 19 Feb 2013 13:36:35 +0000 | Christian Urban | polished some typos in the paper | file | diff | annotate | 
| Tue, 19 Feb 2013 05:11:33 +0000 | Christian Urban | added link and comment to fourth edition of Boolos | file | diff | annotate | 
| Tue, 19 Feb 2013 04:56:33 +0000 | Christian Urban | added clear-definition to paper | file | diff | annotate | 
| Tue, 19 Feb 2013 04:31:18 +0000 | Christian Urban | added newer ROOT file | file | diff | annotate |