Re: Is {{}} a valid construct?

> It's important to realize that every symbol inside a computer is a metaphor.
> A transparent zone is a metaphor for a zero, and an opaque zone is a
> metaphor for a one (on an optical disk). As we proceed up the levels of
> abstraction from there, it's all metaphor.

True we can use almost anything as a metaphor, but how can we use nothing as a metaphor for something?

> Not that this has any bearing on the question Neo keeps asking.

It does. So I now ask you, suppose my universal set contains just one "element" as follows:

U = { {} }

What then is NOT {} ? Received on Mon Feb 05 2007 - 14:36:39 CST