Re: Objects and Relations

> > If unordered sets are the foundation, how can one express
> > the string 'bob' with unordered sets only?
>
> ( ( () ((b)) )
> ( (()) ((o)) )
> ( (()(())) ((b)) ) )

Are the following equal?

{a, b, c, d, {}} ?= {a, b, c, d}

{{}} ?= {}

{} ?= nothing Received on Wed Jan 31 2007 - 05:16:21 CET