Revision history for entry Peterson, Jeremy George (1976). "Shortest single axioms for the classical equivalential calculus" [JERSSA]

NB: for privacy reasons, few details are provided in public revision histories.
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2013-12-01T19:33:46updateSystem / admin update -
2013-11-22T13:36:12updateSystem / admin update -
2013-11-04T11:10:02updateSystem / admin update -
2010-10-28T13:43:05updateSystem / admin update -
2010-10-01T19:43:25updateSystem / admin update -
2010-09-23T17:06:59addSystem / admin update -