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Am Fri, 24 Jan 2025 10:37:51 +0100 schrieb WM:
But your claim that a set exists forces the existence of a first FISON that cannot be discarded. Otherwise all can be discarded.The union of all FISONs does not cover ℕ. Otherwise Cantor's theoremCantor's theorem does not force the existence of a necessary set.
would require the existence of a first necessary FISON.
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