Re: ?? Functional Dependency Question ??
Date: Sat, 18 Oct 2008 15:56:01 GMT
Message-ID: <lGnKk.2289$fF3.1492_at_edtnps83>
Bob Badour wrote:
...
>
> I'm not seeing it either. By these truth tables, it seems to:
>
> XY AB X->A Y->B (X->A)(Y->B) XY->AB (X->A)(Y->B)->(XY->AB)
> 00 00 1 1 1 1 1
> 00 01 1 1 1 1 1
> 00 11 1 1 1 1 1
> 00 10 1 1 1 1 1
> 01 10 1 0 0 1 1
> 01 11 1 1 1 1 1
> 01 01 1 1 1 1 1
> 01 00 1 0 0 1 1
> 11 00 0 0 0 0 1
> 11 01 0 1 0 0 1
> 11 11 1 1 1 1 1
> 11 10 1 0 0 0 1
> 10 10 1 1 1 1 1
> 10 11 1 1 1 1 1
> 10 01 0 1 0 1 1
> 10 00 0 1 0 1 1
>
> (View with a fixed width font)
>
> Can anyone find a mistake in the above truth tables? Is there a
> difference between functional dependency and implication that I need to
> learn?
The table looks right to me. Received on Sat Oct 18 2008 - 17:56:01 CEST