Justin Palumbo

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Name Justin Palumbo
Member for 3 years
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Location UCLA
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UCLA grad student studying set theory.
9

Questions
votes newest views recent
2
11
votes
4
answers
780
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Cantor-Bernstein for notions of forcing

nov 24 at 3:08 jonasreitz 510●3●7

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10
votes
2
answers
466
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Adding a random real makes the set of ground model reals meager

jun 13 10 at 11:52 Péter Komjáth 3,488●13●19

 
7
votes
1
answer
289
views

Restricted Versions of Hechler Forcing

mar 9 11 at 8:51 Jason 1,944●1●5●16

 
7
votes
1
answer
255
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Tree Version of Hechler Forcing

apr 24 11 at 6:26 Justin Palumbo 2,149●1●7●17

1
7
votes
1
answer
167
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Intermediate extension of a Prikry-Silver extension?

apr 16 12 at 19:56 Justin Palumbo 2,149●1●7●17

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3

 

 

 

19

Answers
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24
Does every set admit a rigid binary relation? (and how is this related to the Axiom of Choice?) (2)
15
Does every non-empty set admit a group structure (in ZF)?
11
How can an ultrapower of a model of ZFC be “ill-founded” yet still satisfy ZFC?
10
Forcing as a tool to prove theorems
10
If Q is a subset of the plane of size less than continuum, then does every closed F in Q extend to a closed connected G in the plane with the same trace on Q? (Or is this independent of ZFC?)
9
Uses of bisimulation outside of computer science.
8
Background for classic forcing
7
Difference between Laver’s and Mathias’s forcing
7
Subsets of sequences of natural numbers vs. strategies under ZFC
7
Model of ZF + $\neg$C in which Solovay’s Theorem on stationary sets fails?
6
Determinacy interchanging the roles of both players
5
Is $sat(I)$ always a regular cardinal?
4
Singular Cardinals, and A Strange Question.
4
Cantor-Bernstein for notions of forcing
4
Is it possible for countably closed forcing to collapse $\aleph_2$ to $\aleph_1$ without collapsing the continuum?
3
A proof for cof(C,M)=cov(M)
2
Distinct well-orderings of the same set
2
a result about Laver property
2
Lower Bounds in Theoretical Computer Science

 

207

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203
4

 

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