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8 Questions

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11 votes

3 answers

794 views

When are two forcing posets "the same"?

asked Jul 26, 2023 at 4:57

11 votes

2 answers

817 views

Undefinable inner model

asked Feb 12 at 22:24

9 votes

0 answers

258 views

Naive way to violate $\mathsf{SCH}$ at $\aleph_\omega$

asked Mar 2 at 18:28

7 votes

0 answers

314 views

Did Lebesgue like non-measurable set or not?

asked Sep 12 at 18:34

7 votes

1 answer

321 views

Strength of Borel determinacy

asked Sep 23, 2023 at 22:27

7 votes

1 answer

650 views

What can be the measure of a Vitali set?

asked Dec 7, 2023 at 17:09

7 votes

0 answers

380 views

Is Borel cardinality the same as cardinality under determinacy?

asked Apr 30, 2023 at 16:55

3 votes

0 answers

223 views

Basic cardinal arithmetic without choice

asked Apr 27, 2023 at 1:53