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Revision history for entry Thomas, Ivo (1970). "Final word on a shortest implicational axiom" [IVOFWO]

NB: for privacy reasons, few details are provided in public revision histories.
2015-02-04T23:40:50updateSystem / admin update -
2013-12-01T19:31:34updateSystem / admin update -
2013-11-22T13:34:11updateSystem / admin update -
2013-11-22T13:34:07updateSystem / admin update -
2010-10-28T13:42:23updateSystem / admin update -
2010-10-01T19:41:55updateSystem / admin update -
2010-09-23T17:05:56addSystem / admin update -