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Topic: What are sets? again
Replies: 21   Last Post: Dec 9, 2012 10:12 AM

 Messages: [ Previous | Next ]
 Graham Cooper Posts: 4,495 Registered: 5/20/10
Re: What are sets? again
Posted: Dec 2, 2012 3:30 AM

On Dec 2, 5:44 pm, William Elliot <ma...@panix.com> wrote:
> On Sat, 1 Dec 2012, Zuhair wrote:
> > On Dec 1, 1:41 pm, William Elliot <ma...@panix.com> wrote:
> > > On Fri, 30 Nov 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".
>
>

http://en.wikipedia.org/wiki/Mereology

the part-whole relation orders its universe, meaning that everything
is a part of itself (reflexivity), that a part of a part of a whole is
itself a part of that whole (transitivity), and that two distinct
entities cannot each be a part of the other (antisymmetry).

Date Subject Author
11/30/12 Zaljohar@gmail.com
12/1/12 William Elliot
12/1/12 Zaljohar@gmail.com
12/2/12 William Elliot
12/2/12 Graham Cooper
12/2/12 Zaljohar@gmail.com
12/2/12 William Elliot
12/2/12 ross.finlayson@gmail.com
12/3/12 William Elliot
12/4/12 fom
12/9/12 Charlie-Boo
12/4/12 fom
12/2/12 Charlie-Boo
12/3/12 Graham Cooper
12/3/12 William Elliot
12/4/12 fom
12/4/12 Zaljohar@gmail.com
12/5/12 fom
12/5/12 Zaljohar@gmail.com
12/4/12 Zaljohar@gmail.com
12/5/12 Zaljohar@gmail.com
12/5/12 Zaljohar@gmail.com