Stefan Geschke

Member for 13 years, 9 months
Last seen more than a month ago

math.uni-hamburg.de/home/…
Hamburg, Germany

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Answers

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48

What's a magical theorem in logic?

Aug 30, 2011

45

The sets in mathematical logic

Apr 24, 2011

44

Does anyone know a polynomial whose lack of roots can't be proved?

Jul 22, 2010

36

Is there a measure zero set which isn't meagre?

Oct 25, 2010

35

Work on independence of pi and e

Jul 29, 2010

Questions

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34

Interpretation of the Second Incompleteness Theorem

Sep 9, 2010

27

Realizing groups as automorphism groups of graphs.

Sep 1, 2010

26

Axiom of choice: ultrafilter vs. Vitali set

Jul 6, 2011

14

Is non-connectedness of graphs first order axiomatizable?

Aug 29, 2010

13

Independent families of subsets of $\mathbb N$ of size continuum

Dec 10, 2010

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set-theory

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lo.logic

412

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gn.general-topology

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mathematical-philosophy

158

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12

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reference-request

133

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16

posts

Reputation

+10

What is the generic poset used in forcing, really?

+10

Is it possible to decrease the rank of known structures?

+10

Clearing misconceptions: Defining "is a model of ZFC" in ZFC

+10

The sets in mathematical logic

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Dec 3, 2010

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Nov 28, 2013
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