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Re: What are sets? again
Posted:
Dec 2, 2012 10:38 PM
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On Sun, 2 Dec 2012, Zuhair wrote: > On Dec 2, 10:44 am, William Elliot <ma...@panix.com> wrote: > > On Sat, 1 Dec 2012, Zuhair wrote:
> > > > > The following is an account about what sets are, > > > > > > > Language: FOL + P, Rp > > > > > P stands for "is part of" > > > > > > Does P represent "subset of" or "member of"? > > > Neither. > > > > > P represents "is part of" > > > review mereology to understand that relation informally. > > What is simple jargon, a brief intuitive description of "is a part of".
> Just read Varzi's article on Mereology: > http://plato.stanford.edu/entries/mereology/
It's long winded as philosophy usually is. Basically, "is a part of" is a (partial) order. "Subset" is the better interpretation that "is member of".
So I'll take it as "subset" unless you give a useful interpretation within 300 words or less.
> The relation "is part of" is well understood philosophically speaking, > it has natural examples.
For example?
> I think Varzi's account on it is nice and interesting really. You can > also read David Lewis account on it. The discipline of Mereology is > well established.
What's the point of mereology?
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