Timeline for Existence of non-principal ultrafilters on sets
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 27, 2011 at 12:10 | vote | accept | Stefan Geschke | ||
| Sep 27, 2011 at 12:10 | comment | added | Stefan Geschke | Thanks for the answers. I was under the wrong impression that only the existence of ultrafilters on particular sets had been looked at | |
| Sep 27, 2011 at 12:09 | comment | added | Simon Thomas | And it is also contained in: MR0480028 (58 #227) Pincus, David; Solovay, Robert M. Definability of measures and ultrafilters. J. Symbolic Logic 42 (1977), no. 2, 179–190. | |
| Sep 27, 2011 at 11:55 | history | answered | François G. Dorais | CC BY-SA 3.0 |