[ 3 / biz / cgl / ck / diy / fa / ic / jp / lit / sci / vr / vt ] [ index / top / reports ] [ become a patron ] [ status ]
2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math

Search:

View post   
>> No.15447156 [View]
File: 327 KB, 1403x1052, IMG_20210120_165129741.jpg [View same] [iqdb] [saucenao] [google]
15447156

>>15446809
iirc you can force N<X<R such that PN and PX both have the cardinality of R. The non-existence is ruled out by CH.

The powerset operation is monotone and growing (already the cofinality of the image is growing)
https://en.wikipedia.org/wiki/Easton%27s_theorem

Navigation
View posts[+24][+48][+96]