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Topic: On Generalizing the Natural Numbers
Replies: 5   Last Post: Dec 2, 2012 4:27 PM

 Messages: [ Previous | Next ]
 Graham Cooper Posts: 4,495 Registered: 5/20/10
Re: On Generalizing the Natural Numbers
Posted: Dec 2, 2012 2:46 PM

On Dec 3, 5:33 am, Charlie-Boo <shymath...@gmail.com> wrote:
> > numbers when added to 4 are less than 10?
>
> > Herc
>
>

But this isn't a set unless you are using EXIST to add syntactic
sugar.

R(I,x) <=> { x | R(I,x) }

And you're swapping between = with sets of answers (or intersection)
and ^ in predicate format.

How do you write using {} format - the set of numbers when added to 4
are less than 10.

You can't combine your 2 formatting methods to do this.

Herc

Date Subject Author
12/2/12 Graham Cooper
12/2/12 Frederick Williams
12/2/12 Graham Cooper
12/2/12 Graham Cooper