Andreas Schwab wrote:
> "if and only if" describes an equivalence, thus the negation holds as
> well.
doh! I'd forgotten the precise meaning of 'iff', thanks
nathan
--
Dr Nathan Sidwell :: Computer Science Department :: Bristol University
The voices in my head told me to say this
nathan@acm.org http://www.cs.bris.ac.uk/~nathan/ nathan@cs.bris.ac.uk