On the cofinality of the least $λ$-strongly compact cardinal [article]

Zhixing You, Jiachen Yuan
2022
In this paper, we characterize the possible cofinalities of the least $λ$-strongly compact cardinal. We show that, on the one hand, for any regular cardinal, $δ$, that carries a $λ$-complete uniform ultrafilter, it is consistent, relative to the existence of a supercompact cardinal above $δ$, that the least $λ$-strongly compact cardinal has cofinality $δ$. On the other hand, provably the cofinality of the least $λ$-strongly compact cardinal always carries a $λ$-complete uniform ultrafilter.
doi:10.48550/arxiv.2202.01623 fatcat:s4xwvj3fezh6pipmdm7y4ewl6e