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# Questions

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### How to correct an error in a submitted paper?

apr 22 10 at 7:46 Matthew Daws 5,5291829

4
15
1
2k
views

### What does an etale topos classify?

dec 9 10 at 4:50 Harry Gindi 8,87823396

8
25
3
2k
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### Why are profinite topologies important?

mar 4 12 at 0:41 Benjamin Steinberg 10.7k11449

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### How many proofs that $\pi_n(S^n)=\mathbb{Z}$ are there?

feb 15 at 21:36 Chris Gerig 5,53611240

1
7
3
962
views

### Is set-induction relatively consistent?

jun 13 10 at 23:13 Daniel Mehkeri 57038

4
17
1
908
views

### Can ZFC → NBG be iterated?

jan 6 11 at 20:44 Mike Shulman 17.2k2070

5
14
3
869
views

### Loop space of a category

dec 6 at 7:16 Fedotov 36316

4
12
2
869
views

### Topological vs pro fundamental groups

feb 9 11 at 16:56 Jeremy Brazas 1,5161512

5
8
3
742
views

### Intuitionistic Lowenheim-Skolem?

feb 4 11 at 15:12 Emil Jeřábek 10.7k12542

3
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