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Jason Zesheng Chen's user avatar
Jason Zesheng Chen's user avatar
Jason Zesheng Chen's user avatar
Jason Zesheng Chen
  • Member for 5 years, 2 months
  • Last seen this week
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Top posts
answer
17
May two Cohen reals collapse cardinals?
Oct 30, 2023
answer
8
Analogues of worldly cardinals for (an unusual version of) second-order $\mathsf{ZFC}$
Mar 8, 2021
answer
8
Theorems in set theory that use computability theory tools, and vice versa
Apr 18, 2023
answer
8
Examples of ZFC theorems proved via forcing
Dec 23, 2023
answer
6
Large cardinal consistency strength and size
Sep 11, 2020
answer
6
Which step is wrong in the following simplification of Silver's forcing?
Sep 1, 2021
question
5
Can there be a computational characterization of HOD?
Feb 1, 2021
question
5
What is known about when regularity properties only hold for partial boldface pointclasses?
Jan 15, 2022
answer
5
Forcing as a tool to prove theorems
Jul 23, 2020
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10
If the axiom of replacement implies the axiom of specification, why are both mentioned
8
Characterizing worldly cardinals as the supremum (by n) of least $\Sigma_n$-extendible cardinals
7
Is Fodor's Lemma necessary for the $\omega_1$ train station puzzle?
5
Rank of element in generic extension versus rank of its name