Revision history for entry Heck, Richard (1993). "The development of arithmetic in Frege's Grundgesetze der Arithmetik" [RICTDO]

NB: for privacy reasons, few details are provided in public revision histories.
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2013-11-22T12:08:01updateSystem / admin update -
2013-11-04T09:25:32updateSystem / admin update -
2011-03-09T06:47:34updateSystem / admin update -
2011-03-07T22:07:50update
2011-03-07T22:07:50update
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2011-03-07T22:07:49update