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Fr\'echet cardinals. (arXiv:1810.05035v1 [math.LO])

来源于:arXiv
An infinite cardinal $\lambda$ is called Fr\'echet if the Fr\'echet filter on $\lambda$ extends to a countably complete ultrafilter. We investigate the relationship between Fr\'echet cardinals and strongly compact cardinals under a hypothesis called the Ultrapower Axiom. 查看全文>>