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Bjørn Kjos-Hanssen
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All Questions Answers
Score Newest
answer
56
Is there a measure zero set which isn't meagre?
Oct 25, 2010
answer
43
Suggestions for good notation
Oct 20, 2010
answer
36
If all balls at $x$ and $y$ are isometric is there an isometry sending $x$ to $y$?
Oct 6, 2014
answer
33
Examples of Mathematical Papers that Contain a Kind of Research Report
Nov 21, 2018
answer
32
On sentences true in all finite groups
May 24, 2015
answer
25
Languages beyond enumerable
Apr 21, 2016
answer
25
What is the reverse mathematical strength of the fundamental theorem of algebra?
Jun 30, 2015
answer
22
Is there a known Turing machine which halts if and only if the Collatz conjecture has a counterexample?
Sep 15, 2018
answer
21
Question arising from Voevodsky's talk on inconsistency
Oct 5, 2010
answer
21
For which Millennium Problems does undecidable -> true?
Apr 11, 2014
Top Meta posts
2
7
20
Formatting a citation to a MathOverflow answer
11
Is the question "Why fund the research in pure mathematics?" allowed on MO?
8
Two new user pages?
7
Best of MathOverflow, or papers inspired by MathOverflow
6
One number on top of another with mathjax?
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72
Do you need to read a whole article before citing it?
51
When mentioning the author of a journal I am using in my Literature Review, should I mention author's credentials?
47
Do any two spanning trees of a simple graph always have some common edges?
44
Intuition for random variable being $\sigma$-algebra measurable?
33
Are there any proofs the undecidability of the halting problem that does not depend on self-referencing or diagonalization ?

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