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Am Fri, 21 Feb 2025 18:17:32 +0100 schrieb WM:
Of course removing all elements from Z produces the empty set.Zermelo claims to secure the existence of set Z.Z is not a set containing Z; Z cannot be "removed" from Z.
This set can be handled, for instance removed from Z. A set containing Z
is not useful in this context.
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