24

Questions

votes newest views recent

7

votes

3

answers

473

views

Characterizing forcings that don’t add any dominating reals

set-theory forcing posets

nov 23 10 at 7:56 Amit Kumar Gupta 2,909●10●26

6

votes

2

answers

482

views

What is the consistency strength of the failure of square, in terms of large cardinals

large-cardinals set-theory reference-request

mar 11 11 at 20:43 Justin Moore 3,051●11●22

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5

votes

1

answer

286

views

Does a generic normal measure extend the club filter?

set-theory large-cardinals ultrafilters forcing

apr 10 11 at 19:05 Amit Kumar Gupta 2,909●10●26

5

votes

1

answer

290

views

Generalizations of pcf theory

set-theory reference-request lo.logic pcf-theory

oct 13 11 at 21:55 Amit Kumar Gupta 2,909●10●26

5

votes

0

answers

213

views

PFA and the compactness/incompactness of $\omega_2$

set-theory forcing large-cardinals

sep 7 11 at 0:21 Amit Kumar Gupta 2,909●10●26

4

votes

1

answer

155

views

Bounds on $\max \mathrm{pcf}(A)$ if $\Pi A$ is big

set-theory lo.logic pcf-theory

oct 11 11 at 17:59 François G. Dorais♦ 22.7k●2●48●113

4

votes

0

answers

220

views

A question about the canonical constructible square sequence

set-theory reference-request

dec 24 10 at 3:42 Amit Kumar Gupta 2,909●10●26

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4

votes

1

answer

281

views

Normal measures on $P_{\kappa }(\lambda )$ extend the club filter

set-theory large-cardinals ultrafilters

apr 9 11 at 4:44 Jason 1,944●1●5●16

4

4

votes

1

answer

439

views

Given a cardinal k, what’s the biggest dense linear order with a dense subset of size k?

set-theory co.combinatorics order-theory independence-results reference-request

dec 5 10 at 0:34 Andreas Blass 32.9k●4●54●109

3

votes

1

answer

380

views

Strong Cardinals and Supercompact Cardinals

set-theory large-cardinals

oct 30 10 at 22:57 Joel David Hamkins 75.2k●7●187●343