An Application of Higher Order Fixed Points of Normal Functions
نویسنده
چکیده
We define higher order fixed points of normal functions, describe them and apply to obtain a constructive proof that, if κ is the least ordinal such that the ultrapower κ/F is non-trivial, then that ultrapower has at least κ elements. AMS Mathematics Subject Classification (2000): 03E04, 03E20, 03C20.
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تاریخ انتشار 2008