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Home -> Community -> Usenet -> comp.databases.theory -> Re: A Simple Notation
Vadim Tropashko wrote:
> ...
> 2. D&D <OR> & <AND> algebra. It is not boolean algebra because
> absoption law fails.
> ...
I don't get this, sorry for the bother, but could you elaborate?
thx,
p
Received on Thu Jul 05 2007 - 20:30:14 CDT
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