On 12/16/2018 12:58 PM, Jason Resch wrote:
It's not "my Platonic arithmetic theory" --- This is the a very popular theory among mathematicians <https://docs.google.com/forms/d/e/1FAIpQLSeEAvukZItOCKGXXBf38pv0OlPOxT0i8N7qPky35TqoWgwNQQ/viewanalytics> and also the most commonly held ideas in philosophy of mathematics among professional mathematicians.

Prominent mathematicians that were well known Platonists, include:

  * Bertrand Russell
    <https://en.wikipedia.org/wiki/Bertrand_Russell>,^[12]
    <https://en.wikipedia.org/wiki/Platonism#cite_note-SEP-P-12>

Russell wrote, "In mathematics we never know what we're talking about nor whether what we say is true."  Russell was ready to accept anything into mathematics, but I don't think that made him a Platonist.

  * Alonzo Church <https://en.wikipedia.org/wiki/Alonzo_Church>,^[12]
    <https://en.wikipedia.org/wiki/Platonism#cite_note-SEP-P-12>
  * Kurt Gödel <https://en.wikipedia.org/wiki/Kurt_G%C3%B6del>,^[12]
    <https://en.wikipedia.org/wiki/Platonism#cite_note-SEP-P-12>
  * W. V. O. Quine
    <https://en.wikipedia.org/wiki/W._V._O._Quine>,^[12]
    <https://en.wikipedia.org/wiki/Platonism#cite_note-SEP-P-12>


Quine argued that what exists is whatever is posited by our accepted theories of science.  He thought this meant that mathematics necessary to science was "real", but I don't know what he thought of Harty Field.

Brent

  * David Kaplan
    <https://en.wikipedia.org/wiki/David_Kaplan_(philosopher)>,^[12]
    <https://en.wikipedia.org/wiki/Platonism#cite_note-SEP-P-12>
  * Saul Kripke <https://en.wikipedia.org/wiki/Saul_Kripke>,^[12]
    <https://en.wikipedia.org/wiki/Platonism#cite_note-SEP-P-12>
  * Edward Zalta <https://en.wikipedia.org/wiki/Edward_Zalta>.^[13]
    <https://en.wikipedia.org/wiki/Platonism#cite_note-13>
  * John Conway
  * Roger Penrose

https://plato.stanford.edu/entries/platonism/
https://en.wikipedia.org/wiki/Platonism#Modern_Platonism
https://www.quora.com/What-is-your-opinion-on-mathematical-Platonism
https://www.youtube.com/watch?v=TKlPj_qGIt8

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