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Top Questions
346
votes
A challenge by R. P. Feynman: give counter-intuitive theorems that can be translated into everyday language
soft-question
big-list
examples-counterexamples
asked Jul 21, 2010 at 4:24
math.stackexchange.com
182
votes
Knuth's intuition that Goldbach might be unprovable
nt.number-theory
lo.logic
set-theory
asked Jun 11, 2010 at 0:38
mathoverflow.net
122
votes
Are the "proofs by contradiction" weaker than other proofs?
logic
proof-theory
asked Jul 21, 2010 at 3:19
math.stackexchange.com
47
votes
Why is multiple comparison a problem?
hypothesis-testing
multiple-comparisons
asked Aug 9, 2010 at 18:03
stats.stackexchange.com
43
votes
If all sets were finite, how could the real numbers be defined?
logic
set-theory
philosophy
proof-theory
finitism
asked Jul 22, 2010 at 15:58
math.stackexchange.com
34
votes
Sum of two periodic functions
analysis
asked Jul 28, 2010 at 23:44
math.stackexchange.com
18
votes
How would calculus be possible in a finitist axiom system?
lo.logic
axioms
asked Jul 25, 2010 at 14:49
mathoverflow.net
14
votes
Matlab-like command history retrieval in unix command line
matlab
unix
asked Aug 20, 2010 at 22:03
stackoverflow.com
13
votes
Geometric multiplicity of an eigenvalue
linear-algebra
eigenvalues-eigenvectors
asked Oct 8, 2010 at 2:33
math.stackexchange.com
12
votes
Writing $f(x,y)$ as $\Phi(g(x) + h(y))$
real-analysis
asked Nov 29, 2010 at 2:06
math.stackexchange.com
1
2
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Top Answers
320
A challenge by R. P. Feynman: give counter-intuitive theorems that can be translated into everyday language
math.stackexchange.com
188
Why does the series $\sum_{n=1}^\infty\frac1n$ not converge?
math.stackexchange.com
35
What are good books/other readings for elementary set theory?
math.stackexchange.com
32
Writing papers in pre-LaTeX era?
mathoverflow.net
28
Drawing heart in mathematica
math.stackexchange.com
26
Axiom of choice - to use or not to use
math.stackexchange.com
14
Completion of rational numbers via Cauchy sequences
math.stackexchange.com
14
Undergraduate Level Math Books
mathoverflow.net
11
Is $L^2(\mathbb{R})$ with convolution a Banach Algebra?
math.stackexchange.com
10
How to prove that the derivative of Heaviside's unit step function is the Dirac delta?
math.stackexchange.com
9
Best online mathematics videos?
mathoverflow.net
8
What kinds of sets can replace lattices in the Shannon sampling theorem?
mathoverflow.net