Revision history for entry Boolos, George (1980). "On systems of modal logic with provability interpretations" [BOOOSO] |
| Time | Type | Notes |
| 2011-06-13T23:07:13 | update | |
| 2011-05-31T14:46:45 | update | System / admin update - |
| 2011-01-10T19:04:05 | update | System / admin update - |
| 2010-10-13T00:01:04 | add | System / admin update - |
