Sujet : Re: The set of necessary FISONs
De : noreply (at) *nospam* example.org (joes)
Groupes : sci.mathDate : 22. Feb 2025, 11:34:21
Autres entêtes
Organisation : i2pn2 (i2pn.org)
Message-ID : <a450a51883d6f48dfc590c5f51e215d8fe8764a0@i2pn2.org>
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User-Agent : Pan/0.145 (Duplicitous mercenary valetism; d7e168a git.gnome.org/pan2)
Am Sat, 22 Feb 2025 11:12:17 +0100 schrieb WM:
On 21.02.2025 19:45, joes wrote:
Am Fri, 21 Feb 2025 18:17:32 +0100 schrieb WM:
Zermelo claims to secure the existence of set Z.
This set can be handled, for instance removed from Z. A set containing
Z is not useful in this context.
Z is not a set containing Z; Z cannot be "removed" from Z.
Of course removing all elements from Z produces the empty set.
But Z \ {Z} = Z, because Z !e Z.
-- Am Sat, 20 Jul 2024 12:35:31 +0000 schrieb WM in sci.math:It is not guaranteed that n+1 exists for every n.