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# Questions

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### Is it possible for countably closed forcing to collapse $\aleph_2$ to $\aleph_1$ without collapsing the continuum?

feb 10 10 at 20:55 Norman Lewis Perlmutter 71238

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### Model of ZF + $\neg$C in which Solovay’s Theorem on stationary sets fails?

feb 7 10 at 3:28 alephomega 1,7211619

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### closure of separative quotients

feb 10 10 at 21:22 Norman Lewis Perlmutter 71238

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### Characterizing elementary embeddings of $L$ and $L_\alpha$ under 0#

aug 21 11 at 19:20 Ali Enayat 4,4591923

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### Completeness of the club filter without AC

nov 25 10 at 6:59 Andres Caicedo 14.8k14381

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### Do indiscernibility embeddings exist for an initial segment of an inner model of many measurable cardinals?

feb 17 12 at 0:10 Philip Welch 93677

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