59

Questions
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3
27
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6
answers
2k
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How to correct an error in a submitted paper?

apr 22 10 at 7:46 Matthew Daws 5,547●1●8●29

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25
votes
3
answers
2k
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Why are profinite topologies important?

mar 4 12 at 0:41 Benjamin Steinberg 10.8k●1●14●49

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22
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1
answer
558
views

Brown representability for non-connected spaces

aug 19 at 20:44 Karol Szumiło 1,678●4●8

6
20
votes
1
answer
618
views

Can equivalences be strictified to isomorphisms?

mar 27 12 at 17:39 Mike Shulman 17.4k●21●72

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18
votes
8
answers
1k
views

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

17h ago Johannes Ebert 11.6k●33●56

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17
votes
1
answer
914
views

Can ZFC → NBG be iterated?

jan 6 11 at 20:44 Mike Shulman 17.4k●21●72

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16
votes
1
answer
522
views

Small complete categories in a Grothendieck topos

dec 31 10 at 22:17 Steven Gubkin 6,203●2●26●63

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16
votes
1
answer
651
views

Logical endofunctors of Set?

dec 9 09 at 1:36 Joel David Hamkins 76.8k●8●192●355

7
16
votes
2
answers
581
views

When does collection imply replacement?

jan 22 10 at 2:57 Joel David Hamkins 76.8k●8●192●355

4
16
votes
5
answers
641
views

Sheafification via hypercovers

may 3 12 at 8:15 Buschi Sergio 1,809●1●4●8

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