53

Questions
votes newest views recent
2
9
votes
3
answers
684
views

How elementary can we go?

jul 28 11 at 23:36 Joel David Hamkins 75.5k●8●188●347

 
8
votes
1
answer
446
views

$\Delta^0_{\alpha}$ universal sets does not exist

oct 9 11 at 21:16 alephomega 1,721●1●6●19

 
8
votes
0
answers
213
views

List of Whitehead-like Problems

jul 3 at 6:56 Asaf Karagila 7,243●1●14●44

 
7
votes
0
answers
452
views

What sort of large cardinal can $\aleph_1$ be without the axiom of choice?

feb 3 12 at 18:44 Asaf Karagila 7,243●1●14●44

 
7
votes
1
answer
306
views

For models of ZF, if for some $A$ we have $L[A] = L$, what can we deduce about $A$?

jul 20 11 at 0:25 Joel David Hamkins 75.5k●8●188●347

2
7
votes
4
answers
488
views

On the large cardinals foundations of categories

may 14 at 21:34 Zhen Lin 1,825●1●5●11

 
7
votes
1
answer
207
views

The transcendence degree of $\mathbb R$ after adding a Cohen

apr 2 at 11:40 Joel David Hamkins 75.5k●8●188●347

1
7
votes
1
answer
227
views

What is $\omega_1^{CK}(\mathsf{Ord})$?

dec 18 at 0:23 Asaf Karagila 7,243●1●14●44

 
6
votes
3
answers
287
views

Why does the Solovay-Tennenbaum theorem work?

dec 3 at 1:30 Andreas Blass 33k●4●55●110

1
6
votes
1
answer
199
views

$\Theta$ and the Hartogs of $2^\mathbb R$

jul 25 at 21:14 Trevor Wilson 1,506●6●14

prev 1 2 3 4 5 6 next