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  • Member for 1 year, 11 months
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question
11
When are two forcing posets "the same"?
Jul 26, 2023
question
11
Undefinable inner model
Feb 12
question
9
Naive way to violate $\mathsf{SCH}$ at $\aleph_\omega$
Mar 2
question
7
Is Borel cardinality the same as cardinality under determinacy?
Apr 30, 2023
question
7
Strength of Borel determinacy
Sep 23, 2023
question
7
What can be the measure of a Vitali set?
Dec 7, 2023
question
7
Did Lebesgue like non-measurable set or not?
Sep 12
answer
6
How much of the axiom of choice do you need in mathematics?
Aug 11, 2023
answer
6
Who needs Replacement anyway?
Sep 12
answer
4
Maximal contractible-ish Hausdorff surfaces
Jul 9, 2023
Top network posts
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13
Naive way to violate SCH at $\aleph_\omega$
6
Adding zero sharp via forcing
6
Do the well-ordered sets of a model of ZF form a model of ZFC?
5
Poset where no infinite descending chain has a lower bound
5
Are complete and totally proper forcing the same?