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From: Ben Bacarisse <ben@bsb.me.uk>
Newsgroups: sci.math
Subject: Re: More complex numbers than reals?
Date: Sat, 13 Jul 2024 01:12:22 +0100
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WM <wolfgang.mueckenheim@tha.de> writes:
(AKA Dr. Wolfgang Mückenheim or Mueckenheim who teaches "Geschichte des
Unendlichen" at Hochschule Augsburg.)

> Le 11/07/2024 à 02:46, Ben Bacarisse a écrit :
>> "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> writes:
>
>>> {a, b, c} vs { 3, 4, 5 }
>>>
>>> Both have the same number of elements,
>> That will fall down for infinite sets unless, by decree, you state that
>> your meaning of "more" makes all infinite sets have the same number of
>> elements.
>
> There are some rules for comparing sets which are not subset and superset,
> namely symmetry:

Still nothing about defining set membership, equality and difference in
WMaths though.  You've been dodging that one for years.  Without sound
definitions of those things WMaths is pretty useless.

-- 
Ben.