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Joel Adler's user avatar
Joel Adler's user avatar
Joel Adler's user avatar
Joel Adler
  • Member for 12 years, 3 months
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I am lecturer at the Pädagogische Hochschule Bern.

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Top posts
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6
Nontrivial theorems with trivial proofs
Jan 24, 2017
question
4
Relationship between a first-order theory and its model companion
Mar 9, 2015
answer
4
Functions $f:X\to X$ that commute with "almost no others"
Dec 28, 2016
question
2
Proof of the Specker-Blatter theorem
Sep 1, 2018
answer
2
A characterisation of Boolean algebras
Aug 30, 2012
answer
2
Commuting functions and fixpoints
Dec 27, 2016
answer
2
Are there proofs that you feel you did not "understand" for a long time?
Mar 29, 2017
answer
0
Can infinity shorten proofs a lot?
Mar 12, 2018
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8
Easy example why complex numbers are cool
7
Sum of cardinals without AC
7
Existence of a bijection without AC
7
Multiplicative structure without unique prime factorisation
5
Liouville sequences