Timeline for answer to "Largish" cardinals by Joel David Hamkins
Current License: CC BY-SA 3.0
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| Apr 13, 2017 at 12:58 | history | edited | CommunityBot |
replaced http://mathoverflow.net/ with https://mathoverflow.net/
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| Dec 13, 2015 at 11:30 | vote | accept | Gro-Tsen | ||
| Dec 9, 2015 at 22:37 | comment | added | Joel David Hamkins | Yes, that's right. Officially, it is defined with $H_\kappa\prec_n V$, but this difference only matters for $n=1$, since once $n\geq2$ then we have $H_\kappa=V_\kappa$ as you noted. | |
| Dec 9, 2015 at 22:34 | comment | added | Gro-Tsen | Thanks! Just to clarify, the $\Sigma_n$-correct cardinals are those which satisfy the second property I mentioned ($V_\kappa \mathrel{\prec_n} V$). The first (viz., $V_\kappa \models \mathsf{ZC} + \Sigma_n\textrm{-replacement}$), is of a different nature since it can be checked by looking at $V_\kappa$ alone. (It's also implied by $\Sigma_n$-correctness, although I'm not sure I didn't miss a $\pm1$ on the $n$ here.) So I'll wait a bit before approving your answer to see if someone (or you yourself) has something to say about that other property. | |
| Dec 9, 2015 at 21:54 | history | edited | Joel David Hamkins | CC BY-SA 3.0 |
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| Dec 9, 2015 at 21:46 | history | edited | Joel David Hamkins | CC BY-SA 3.0 |
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| Dec 9, 2015 at 21:18 | history | edited | Joel David Hamkins | CC BY-SA 3.0 |
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| Dec 9, 2015 at 21:11 | history | answered | Joel David Hamkins | CC BY-SA 3.0 |