Revision history for entry Liddell, G. F. (1982). "A logic for propositions with indefinite truth values" [LIDALF]

NB: for privacy reasons, few details are provided in public revision histories.
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2013-12-01T20:44:56updateSystem / admin update -
2013-01-12T15:52:03updateSystem / admin update -
2013-01-12T15:52:03updateSystem / admin update -
2011-03-22T14:18:04update
2009-05-23T21:20:46update
2009-05-23T21:20:40update