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Results tagged with reference-request
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user 147031
This tag is used if a reference is needed in a paper or textbook on a specific result.
17
votes
May two Cohen reals collapse cardinals?
Here's a slightly different example. This example has the additional benefit that the analogous argument using measure shows that two random reals can also collapse cardinals.
By Solovay's characteriz …
5
votes
0
answers
288
views
What is known about when regularity properties only hold for partial boldface pointclasses?
Apologies in advance for a rather vague and open-ended question.
Results about regularity properties of the projective pointclasses tend to have a wholesale flavor. By this I mean one tends to be conc …