Re: Verify Basic Algebra Properties

> > [basic] algebraic properties
> >
> > Commutative: A and B = B and A
> > A or B = B or A
> > Associative: A and (B and C) = (A and B) and C
> > A or (B or C) = (A or B) or C
> > Idempotent: A and A = A
> > A or A = A
> > Absorbtive: (A and B) or B = B
> > (A or B) and B = B
> >
> > ...where A, B and C can be sets of anything?
>
> Wow a computer algebra system among all the other impressive things!
> Or maybe not:

Aloha, I am wondering how someone would form sets A, B and C in RMDB if John and Mary are in one table and apple and orange in another? Would you advise a non-IP, EAV or OTLT type solution?

> http://en.wikipedia.org/wiki/Cargo_cult

Works for me :) Received on Mon Jan 22 2007 - 17:38:20 CET