The problem of finding the ultimate core model, one that contains all large cardinals.
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Source: List of unsolved problems in mathematics (CC BY-SA 4.0)
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More in “Set theory”
- Does the partition principle (PP) imply the axiom of choice (AC)?
- (Woodin) Does the generalized continuum hypothesis below a strongly compact cardinal imply the generalized continuum hypothesis everywhere?
- Does the generalized continuum hypothesis entail {\diamondsuit(E^{\lambda^+}_{\operatorname{cf}(\lambda)}}) for every singular cardinal…
- Does the generalized continuum hypothesis imply the existence of an ℵ2-Suslin tree?
- If ℵω is a strong limit cardinal, is 2^{\aleph_\omega} ω4, was obtained by Shelah using his PCF theory.
- Woodin's Ω-conjecture
- Does the consistency of the existence of a strongly compact cardinal imply the consistent existence of a supercompact cardinal?
- Does there exist a Jónsson algebra on ℵω?