Invisible wrote:
> So are the two formalisms of equivilent expressive power?

As far as I understand it, yes. They're just different ways of saying the 
same thing.  It has been a number of years since I've had to deal with the 
formalisms of it.  Also, there may be differences when it comes to updating 
the relations (insert, delete, update, etc), as I don't know just how that's 
handled in the formal math of it.

-- 
   Darren New, San Diego CA, USA (PST)
   "We'd like you to back-port all the changes in 2.0
    back to version 1.0."
   "We've done that already. We call it 2.0."

Post a reply to this message