More Nullity.

To make my entry below even eaiser to understand, I'll summarize it by saying this: Zero does not have a multiplicative inverse.<BR>
It's ALWAYS true that 0x = 0.  There's a bunch of crap on ring theory that proves this, but people are saying that my example below is too complex.<BR>
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So..yeah, we won't go into ring theory.<BR>
The multiplicative inverse of a number x is the number which when muliplied by x, equals 1.<BR>
So, for example, if X equals 5, the multiplicative inverse is 1/5.  5 * (1/5) = 1.<BR>
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That doesn't work with zero.<BR>
Nullity is crap.<BR>