Systems of Logic Based on Ordinals (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Systems of Logic Based on Ordinals" in English language version.

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1web.archive.org

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1books.google.com

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books.google.com (Global: 3^rd place; English: 3^rd place)

Martin Davis "Computability, Computation and the Real World", in Imagination and Rigor edited by Settimo Termini 2006 ISBN 88-470-0320-2 pages 63-66 [1]

web.archive.org (Global: 1^st place; English: 1^st place)

Turing, Alan (May 1938). Systems of Logic Based on Ordinals (PDF) (Doctor of Philosophy thesis). Seeley G. Mudd Manuscript Library Princeton, NJ: webspace.princeton.edu – via archive.org.