Re: So what's null then if it's not nothing?

From: Hugo Kornelis <hugo_at_pe_NO_rFact.in_SPAM_fo>
Date: Wed, 14 Dec 2005 23:56:03 +0100
Message-ID: <hk81q19t85t60ho59gjkch3rdgv2aoq9ct_at_4ax.com>


On Mon, 12 Dec 2005 04:24:43 GMT, David Cressey wrote:

>
>"Hugo Kornelis" <hugo_at_pe_NO_rFact.in_SPAM_fo> wrote in message
>news:mr6pp1dthae49qdiudmgcp8eh66tmve5pp_at_4ax.com...
>
>
>> If a data type accomodates not only True and False but Unknown as well
>> (represented in whatever way), I'd hesitate to call it Boolean, since
>> most people associate the term Boolean with the most simple Boolean
>> algebra, that has only True and False. But on the other hand, if all
>> rules for a Boolean algebra are met, there's technically no reason to
>> object to the name Boolean for this data type.
>
>In order to move this discussion forward, I believe it's going to be
>necessary to distinguish between
>Boolean arithmetic and Boolean algebra.

Hi David,

And what exactly is the difference?

Best, Hugo

-- 

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Received on Wed Dec 14 2005 - 23:56:03 CET

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