University of Cambridge > > Isaac Newton Institute Seminar Series > Delta_1-definability of the non-stationary ideal

Delta_1-definability of the non-stationary ideal

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact webseminars.

Mathematical, Foundational and Computational Aspects of the Higher Infinite

The talk will be devoted to the proof of the fact that assuming $V = L$, for every successor cardinal  $kappa$ there exists a GCH and cardinal preserving forcing poset $P in L$ such that in $LP$ the ideal of all non-stationary subsets of $kappa$ is  $Delta_1$-definable over $H(kappa+)$. We shall also discuss the situation for limit $kappa$.

This talk is part of the Isaac Newton Institute Seminar Series series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.


© 2006-2024, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity