Skip to main content

Timeline for answer to "Largish" cardinals by Joel David Hamkins

Current License: CC BY-SA 3.0

Post Revisions

8 events
when toggle format what by license comment
Apr 13, 2017 at 12:58 history edited CommunityBot
replaced http://mathoverflow.net/ with https://mathoverflow.net/
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
added 430 characters in body
Dec 9, 2015 at 21:46 history edited Joel David Hamkins CC BY-SA 3.0
added 174 characters in body
Dec 9, 2015 at 21:18 history edited Joel David Hamkins CC BY-SA 3.0
added 628 characters in body
Dec 9, 2015 at 21:11 history answered Joel David Hamkins CC BY-SA 3.0