Timeline for $\Delta^{1}_{2}$ and degrees of constructibility $\textbf{on sets}$
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 14, 2018 at 9:06 | comment | added | M Carl | Can you give a sketch? | |
| Nov 13, 2018 at 1:07 | comment | added | 喻 良 | I think that there should be a negative solution to the question. But the proof is too lengthy to be presented here. | |
| Nov 1, 2018 at 12:06 | history | edited | M Carl | CC BY-SA 4.0 |
deleted 167 characters in body
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| Nov 1, 2018 at 11:53 | comment | added | 喻 良 | The degree of $\omega_1^L$ is $0$. | |
| Nov 1, 2018 at 10:52 | history | edited | M Carl | CC BY-SA 4.0 |
added 19 characters in body
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| Nov 1, 2018 at 10:17 | history | edited | M Carl | CC BY-SA 4.0 |
added 298 characters in body
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| Oct 30, 2018 at 1:22 | answer | added | 喻 良 | timeline score: 3 | |
| Oct 29, 2018 at 10:57 | history | asked | M Carl | CC BY-SA 4.0 |