Re: NULLs: theoretical problems?

From: V.J. Kumar <vjkmail_at_gmail.com>
Date: Mon, 20 Aug 2007 17:14:17 +0200 (CEST)
Message-ID: <Xns99927257627E2vdghher@194.177.96.26>

Jan Hidders <hidders_at_gmail.com> wrote in news:1187599195.269472.153110 @a39g2000hsc.googlegroups.com:

> On 20 aug, 01:48, "V.J. Kumar" <vjkm..._at_gmail.com> wrote:

>> I wonder what the truth tables for 'AND' and 'OR' would look like with
>> the  DEF operator.  Could you show those tables ?

>
> They would be the usual table you already gave:
>

>> x y AND
>> -------
>> defined
>> 0 0 0
>> 1 0 0
>> 0 1 0
>> 1 1 1

What is 'x AND y' equal to if x is '1' and y is not defined ?

>
> -- Jan Hidders
>
>
Received on Mon Aug 20 2007 - 10:14:17 CDT