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Philip Ehrlich's user avatar
Philip Ehrlich's user avatar
Philip Ehrlich's user avatar
Philip Ehrlich
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All Questions Answers
Score Newest
answer
49
Swimming against the tide in the past century: remarkable achievements that arose in contrast to the general view of mathematicians
Apr 11, 2022
answer
46
Who first characterized the real numbers as the unique complete ordered field?
Jun 13, 2020
answer
36
How helpful is non-standard analysis?
Apr 7, 2013
question
31
Hahn's Embedding Theorem and the oldest open question in set theory
Apr 27, 2013
answer
31
Are Conway's combinatorial games the "monster model" of any familiar theory?
Apr 29, 2020
answer
28
Surreal numbers vs. non-standard analysis
Mar 19, 2012
answer
27
Surreal exponentiation -- are the varying definitions equivalent? If not, is there agreement on which ones are better?
Feb 21, 2012
answer
22
Set theory without the empty set
May 28, 2022
answer
20
History of (proposal of) set-theoretic foundations
Sep 5, 2022
answer
20
Who discovered the surreals?
Feb 9, 2019

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