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From: joes <noreply@example.org>
Newsgroups: sci.math
Subject: Re: The non-existence of "dark numbers"
Date: Mon, 24 Mar 2025 00:40:33 -0000 (UTC)
Organization: i2pn2 (i2pn.org)
Message-ID: <404068ec9a0f7e53dda4f6424d84dd6eebd197d9@i2pn2.org>
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Am Sun, 23 Mar 2025 20:47:19 +0100 schrieb WM:
> On 22.03.2025 12:14, joes wrote:
>> Am Sat, 22 Mar 2025 10:19:13 +0100 schrieb WM:
> 
>> That a superset contains elements the subset doesn't is trivial.
>> Whatever your intuition about "number of elements", it isn't
>> cardinality.
> It is not intuition but maths, and it isn't cardinality.
(Cardinality is maths.)

>>> Of course. The reason is that all pairs of the bijection proving same
>>> cardinality have infinitely many dark successors which cannot be
>>> bijected.
>> That's bullshit. Bijections are "complete".
> They should be complete. But complete bijecions are easily prove as
> such: They are injective for every surjection. Cantor's "bijections"
> fail to stad this test.
Right, I forgot you don't believe in bijections. I don't understand
what you mean by that test. Can you explain?

-- 
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.