1

vote

answers

225

views

When are iterated limits of sets equal to a double limit?

measure-theory limits

mar 7 12 at 1:00 Neil Toronto 327●2●8

6

votes

5

answers

818

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Is Lebesgue/Borel non-measurability actually caused by non-uniqueness?

jul 5 11 at 4:27 Ali Enayat 4,459●1●9●23

11

votes

4

answers

593

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Is there a least-fixed-point formulation of inaccessible cardinals?

set-theory fixed-point-theorems large-cardinals

jul 15 11 at 11:05 Joel David Hamkins 75.3k●7●187●343

3

votes

1

answer

334

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How to prove an extension of ZFC is conservative

set-theory model-theory

apr 15 11 at 13:19 Andreas Blass 32.9k●4●54●109

9

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2

answers

785

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Is there a “disjoint union” sigma algebra?

measure-theory gn.general-topology reference-request

apr 5 11 at 17:02 Peter LeFanu Lumsdaine 2,645●8●19

Questions

When are iterated limits of sets equal to a double limit?

Is Lebesgue/Borel non-measurability actually caused by non-uniqueness?

Is there a least-fixed-point formulation of inaccessible cardinals?

How to prove an extension of ZFC is conservative

Is there a “disjoint union” sigma algebra?