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From: joes <noreply@example.org>
Newsgroups: sci.math
Subject: Re: The set of necessary FISONs
Date: Sat, 22 Feb 2025 10:34:21 -0000 (UTC)
Organization: i2pn2 (i2pn.org)
Message-ID: <a450a51883d6f48dfc590c5f51e215d8fe8764a0@i2pn2.org>
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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.