| Mon, 02 May 2011 22:31:46 +0200 | wenzelm | eliminated old CVS Ids; | file | diff | annotate |
| Fri, 17 Jun 2005 16:12:49 +0200 | haftmann | migrated theory headers to new format | file | diff | annotate |
| Wed, 10 Jan 2001 11:07:11 +0100 | paulson | now using "by" for one-line proofs | file | diff | annotate |