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Stefan Geschke's user avatar
Stefan Geschke's user avatar
Stefan Geschke's user avatar
Stefan Geschke
  • Member for 15 years, 9 months
  • Last seen more than 2 years ago
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About

I am a senior lecturer at the University of Hamburg. Most of my work is in Set Theory of the reals and Boolean algebras. I have an interest in infinite Ramsey theory and automorphism groups.

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Top posts

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49
What's a magical theorem in logic?
Aug 30, 2011
47
Does anyone know a polynomial whose lack of roots can't be proved?
Jul 22, 2010
46
The sets in mathematical logic
Apr 24, 2011
41
Is there a measure zero set which isn't meagre?
Oct 25, 2010
37
Work on independence of $\pi$ and $e$
Jul 29, 2010
35
Interpretation of the Second Incompleteness Theorem
Sep 9, 2010
35
Proof that no differentiable space-filling curve exists
Mar 30, 2015
33
Arguments against large cardinals
Oct 29, 2010
32
Theorems with unexpected conclusions
Apr 24, 2011
30
Realizing groups as automorphism groups of graphs.
Sep 1, 2010

Top network posts

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86
What is the cardinality of the set of all topologies on $\mathbb{R}$?
35
True vs. Provable
26
Why Euclidean geometry cannot be proved incomplete by Gödel's incompleteness theorems?
20
Proof that convex open sets in $\mathbb{R}^n$ are homeomorphic?
20
How do you pronounce the inverse of the $\in$ relation? How do you say $G\ni x$?