Timeline for Inverse of a Borel surjection
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 20, 2014 at 17:12 | vote | accept | SBF | ||
| Jul 20, 2014 at 17:00 | comment | added | SBF | @Burak: nice, I haven't heard of that selection theorem before. | |
| Jul 20, 2014 at 16:59 | comment | added | SBF | @JoelDavidHamkins: thanks, fixed that. | |
| Jul 20, 2014 at 16:59 | history | edited | SBF | CC BY-SA 3.0 |
edited body
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| Jul 20, 2014 at 1:37 | comment | added | Joel David Hamkins | I think you mean $\text{id}_Y$ rather than $\text{id}_Z$. | |
| Jul 19, 2014 at 20:20 | answer | added | Joel David Hamkins | timeline score: 7 | |
| Jul 19, 2014 at 20:01 | comment | added | Burak | If $f$ happens to be a countable to one Borel function, then the answer is yes. You can see Classical Descriptive Set Theory, Kechris 18.10. (Indeed, countable to one case is an exercise [18.14] in the book!) | |
| Jul 19, 2014 at 19:19 | history | asked | SBF | CC BY-SA 3.0 |