| Wed, 15 May 2013 11:21:39 +0800 | chunhan | remove duplicated pre-condition of current_files in OS_grant, since it is property if is_file/is_dir. | changeset | files |
| Fri, 10 May 2013 10:23:34 +0800 | chunhan | finish delete_prop.thy | changeset | files |
| Thu, 09 May 2013 11:19:44 +0800 | chunhan | fixed bugs in deleted definition | changeset | files |