| Tue, 03 May 2011 21:44:05 +0200 | wenzelm | use existing \<hyphen>; | file | diff | annotate |
| Sat, 30 Apr 2011 23:27:57 +0200 | wenzelm | updated Variable.focus; | file | diff | annotate |
| Sat, 16 Apr 2011 16:15:37 +0200 | wenzelm | modernized structure Proof_Context; | file | diff | annotate |