User Ashutosh

26 votes

2 answers

2k views

Definable collections without definable members (in ZF)

asked Jan 1, 2010 at 23:11

23 votes

0 answers

924 views

A question about small sets of reals

asked Apr 15, 2014 at 3:02

21 votes

0 answers

1k views

A question about sigma algebras and rectangles

asked Jan 5, 2017 at 15:57

18 votes

3 answers

2k views

On statements independent of ZFC + V=L

asked Jan 12, 2010 at 0:20

16 votes

0 answers

246 views

Gap two Sierpinski set?

asked Apr 27, 2017 at 20:01

16 votes

1 answer

597 views

Universal locally countable partial order

asked May 28, 2019 at 15:14

16 votes

1 answer

522 views

A problem of Keisler and Tarski

asked Sep 18, 2015 at 0:22

14 votes

0 answers

293 views

Non meager union of lines

asked Dec 6, 2015 at 21:47

13 votes

2 answers

899 views

A question of Erdős

asked Jul 24, 2015 at 20:29

12 votes

2 answers

1k views

A question of Erdős on entire functions

asked Jul 5, 2015 at 12:56

12 votes

1 answer

779 views

Restrictions of null/meager ideal

asked May 10, 2013 at 4:11

12 votes

1 answer

682 views

Continuous functions and 2-bushy trees

asked Mar 8, 2015 at 20:33

11 votes

1 answer

527 views

Non meager rectangle

asked Jun 14, 2015 at 18:30

10 votes

0 answers

468 views

A subset of plane that meets every line at length one

asked Feb 3, 2017 at 8:52

10 votes

1 answer

523 views

Is $\clubsuit_{\omega_1}$ enough to get Suslin tree?

asked Jun 3, 2015 at 22:04

10 votes

1 answer

418 views

Saturation of null ideal

asked Jun 12, 2015 at 11:46

10 votes

0 answers

451 views

Ccc forcings and measurable cardinals

asked May 3, 2019 at 13:06

9 votes

0 answers

599 views

Two questions about universally measurable sets

asked Nov 30, 2014 at 20:15

9 votes

2 answers

911 views

Non null Turing antichain

asked Sep 21, 2015 at 23:59

9 votes

1 answer

415 views

Transitive models and CH

asked Nov 5, 2015 at 2:02

8 votes

1 answer

287 views

Translates of meager sets

asked Feb 28, 2015 at 0:19

8 votes

1 answer

395 views

A question about three forcings

asked Oct 30, 2014 at 23:28

8 votes

2 answers

3k views

Discontinuous convolutions

asked Aug 16, 2010 at 22:24

8 votes

2 answers

621 views

Variants of Martin's axiom

asked Oct 1, 2010 at 0:01

7 votes

2 answers

1k views

Definable collections of non measurable sets of reals

asked Dec 18, 2009 at 22:14

7 votes

0 answers

458 views

A question about finitely additive extensions of Lebesgue measure

asked May 1, 2015 at 1:16

7 votes

1 answer

272 views

Avoiding equal distances

asked Apr 9, 2017 at 20:54

6 votes

1 answer

215 views

F-sigma subset of plane meeting every circle at 3 points

asked Jun 29, 2017 at 0:05

6 votes

1 answer

294 views

Reference to a "simple" consistency proof

asked Jul 2, 2013 at 9:15

5 votes

0 answers

188 views

Reference to forcing with a sigma ideal $\cong$ Cohen forcing

asked Apr 28, 2015 at 17:27

Stack Exchange Network

36 Questions

Definable collections without definable members (in ZF)

A question about small sets of reals

A question about sigma algebras and rectangles

On statements independent of ZFC + V=L

Gap two Sierpinski set?

Universal locally countable partial order

A problem of Keisler and Tarski

Non meager union of lines

A question of Erdős

A question of Erdős on entire functions

Restrictions of null/meager ideal

Continuous functions and 2-bushy trees

Non meager rectangle

A subset of plane that meets every line at length one

Is $\clubsuit_{\omega_1}$ enough to get Suslin tree?

Saturation of null ideal

Ccc forcings and measurable cardinals

Two questions about universally measurable sets

Non null Turing antichain

Transitive models and CH

Translates of meager sets

A question about three forcings

Discontinuous convolutions

Variants of Martin's axiom

Definable collections of non measurable sets of reals

A question about finitely additive extensions of Lebesgue measure

Avoiding equal distances

F-sigma subset of plane meeting every circle at 3 points

Reference to a "simple" consistency proof

Reference to forcing with a sigma ideal $\cong$ Cohen forcing