Revision history for entry Prucnal, Tadeusz (1974). "Interpretations of classical implicational sentential calculus in nonclassical implicational calculi" [PRUIOC]

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2014-01-24T09:36:56updateSystem / admin update -
2013-12-02T01:44:08updateSystem / admin update -
2009-12-08T20:50:15update