Revision history for entry Hugly, Philip; Sayward, Charles (1989). "Are All Tautologies True?" [HUGAAT]

NB: for privacy reasons, few details are provided in public revision histories.
TimeTypeNotes
2015-02-06T05:47:22updateSystem / admin update -
2014-01-23T11:58:40updateSystem / admin update -
2013-10-29T21:57:48updateSystem / admin update -
2011-03-30T12:30:07update
2011-02-14T14:23:40update
2011-01-24T10:21:15update
2011-01-24T10:21:15add