Richard has accused others who disagreed with him of engaging in mere 
gainsay.  Pot. Kettle. Black.  Exhibit A follows:

On Thursday, August 29, 2002, at 02:34 AM, Richard A. O'Keefe wrote:

> Valloud Andres <Andres.Valloud at oya.state.or.us> wrote:
> 	When you write x in x\x or xUx, you don't refer to the actual set,
>
> Yes you do.  That's how mathematics works.
>
> 	you refer to a definition.
>
> No you don't.
>
> 	You can refer to a definition because you wrote something like
> 	
> 		x = {e | e has some property}
> 		y = {e1, ..., en}
> 	
> Not often.

Right or wrong, aren't these quibbles getting way out of hand?