Timeline for A question on an ordinal for ZFC-
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 14, 2019 at 6:38 | comment | added | Keshav Srinivasan | Can you explain what work Jensen did and how it superseded the need to study the ramified analytical hierarchy? | |
| Aug 3, 2013 at 13:13 | vote | accept | Frode Alfson Bjørdal | ||
| Aug 2, 2013 at 13:32 | history | edited | Philip Welch | CC BY-SA 3.0 |
Typo: $\Delta^1_4$ changed to $\Delta^0_4$. Clarificatory remark added as Line 9
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| Aug 2, 2013 at 8:09 | history | answered | Philip Welch | CC BY-SA 3.0 |