26

Questions
votes newest views recent
18
40
votes
13
answers
4k
views

Proofs of the uncountability of the reals.

apr 30 at 14:34 Margaret Friedland 1,359●14●10

35
37
votes
19
answers
9k
views

Open problems with monetary rewards

jan 17 at 23:36 Harry Altman 980●1●10●16

3
19
votes
3
answers
2k
views

Is this 1974 claim still valid?

feb 5 11 at 9:23 To be cont'd 1,709●15●30

8
11
votes
2
answers
1k
views

Prime/undecomposable matrices

jun 16 10 at 0:26 To be cont'd 1,709●15●30

6
10
votes
7
answers
2k
views

Can we have A={A} ?

may 9 at 19:34 Dan Petersen 10.4k●1●22●46

4
10
votes
1
answer
702
views

Transcendental numbers: yet another classification

mar 30 11 at 12:02 Emil Jeřábek 10.8k●1●27●42

 
7
votes
5
answers
1k
views

The unprecedented success of the “intersection” operator

aug 6 10 at 16:40 To be cont'd 1,709●15●30

5
7
votes
11
answers
3k
views

Is there any geometry where the triangle inquality fails?

may 19 12 at 9:44 Ivan Meir 61●1

5
5
votes
4
answers
1k
views

Less-known conjectures of significant influence and the contrary

jun 22 10 at 20:30 Charles Matthews 9,800●13●40

8
5
votes
1
answer
567
views

Reconstruction Conjecture: Group theoretic formulation

feb 5 11 at 23:49 Mark Sapir 28.1k●2●57●120

1 2 3 next