In article <5la9fnF77ig7U1@mid.individual.net>, r124c4u102@comcast.net
says...

[ ... ]

> > At the hardware level, everything is implemented as gates. If you want
> > to get creative about it, you can implement everything with only NAND
> > gates, but it's far easier if you give yourself the complete complement
> > (AND, OR, NOT, XOR). If you search for "half adder" and/or "full adder"
> > it should get you started.
>
> Those are arithmetic operators in the binary number system, so it doesn't
> meet the spec..

That's not really true -- you need to combine them to do arithmetic. If
you want to consider them arithmetic opertors, then I'd posit that the
question has no answer: if those are arithmetic, then anything that can
produce an aritmetic result is also an arithmetic operator. Since the
required result is arithmetic, you've basically said that anything can
can possibly produce the desired result is ruled out as a possibility.

--
Later,
Jerry.

The universe is a figment of its own imagination.