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Feb 7, 2021 at 10:49 history edited YCor CC BY-SA 4.0
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Feb 7, 2021 at 10:26 vote accept Ashutosh
Feb 7, 2021 at 8:15 answer added Patrick Lutz timeline score: 7
May 28, 2019 at 20:27 comment added Joel David Hamkins Do you want them to embed as initial segments?
May 28, 2019 at 16:20 comment added Ashutosh Yes. Under CH, the Turing degrees witness this. This is due to Sacks.
May 28, 2019 at 15:58 comment added YCor Out of curiosity, is the negation of this (i.e., the affirmative: there exists such universal $P$) consistent?
May 28, 2019 at 15:14 history asked Ashutosh CC BY-SA 4.0