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The Foundations of Arithmetic: A Logico-Mathematical Enquiry Into the Concept of Number by Frege, Gottlob & Austin, J. L.08 lug, 2017 Formats=[PDF] Year=[1960]
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Collected Papers on Mathematics, Logic, and Philosophy by Frege, Gottlob & McGuinness, Brian17 mag, 2016 Formats=[DJVU] ISBN=[9780631127284] OCLC=[934314781] Year=[1984]
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