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Re: Why not Hausdorff's ordered pairs
Posted:
Feb 23, 2012 2:44 PM
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On 2012-02-23, Graham Cooper <grahamcooper7@gmail.com> wrote:
> What about:
> { {a,{a}} , {{b,{b}}} , {{{c,{c}}}} , {{{{d,{d}}}} }
> The level of redundancy in the duplicate braces represents the
> position in the sequence.
> Herc
> --
> http://Matheology.com
There are models of set theory consistent with the usual
ones in which for some sets u, u={u}. It will not work
in such models.
--
This address is for information only. I do not claim that these views
are those of the Statistics Department or of Purdue University.
Herman Rubin, Department of Statistics, Purdue University
hrubin@stat.purdue.edu Phone: (765)494-6054 FAX: (765)494-0558
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