Revision history for entry Fraenkel, Abraham Adolf; Bar-Hillel, Yehoshua (1966). "Essays on the Foundations of Mathematics" [FRAEOT-2]

NB: for privacy reasons, few details are provided in public revision histories.
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2013-01-17T22:11:08update
2013-01-17T22:11:07update
2013-01-07T14:10:35update