Revision history for entry Gödel, K. (1931). "Über formal unentscheidbare Sätze der Principia Mathematica und verwandter Systeme I" [GDEBFU] |
| Time | Type | Notes |
| 2011-03-20T01:58:52 | update | |
| 2011-03-20T01:58:44 | update | |
| 2011-03-20T01:41:44 | update | |
| 2011-03-20T01:41:44 | add |
