Would make a nice little PHP-GD exercise for someone to build a PHP app
that took a boolean logical expression and produced a Venn diagram.  Maybe
limit it to 3 or less terms to not make your brain explode.

-Rasmus

On Thu, 4 Oct 2001, Maxim Maletsky (PHPBeginner.com) wrote:

> Thanks Rasmus.
>
> The link you provided will become a great resource for PHPBeginner.com
>
> Cheers!
>
> Maxim Maletsky
> www.PHPBeginner.com
>
>
> -----Original Message-----
> From: Rasmus Lerdorf [mailto:[EMAIL PROTECTED]]
> Sent: giovedi 4 ottobre 2001 6.58
> To: Jason Dulberg
> Cc: [EMAIL PROTECTED]
> Subject: RE: [PHP] php in css not working with IF's
>
>
> > Theoretically, either/or I'm assuming. If A isn't 10 or A isn't 9...
>
> But since A cannot be both 9 and 10 at the same time, A will *always*
> not be one of them.
>
> It's exactly the same as saying: if (!(A==9 AND A==10))
>
> Obviously A cannot be both 9 and 10 at the same time so the above will
> be:
>
>   if(!(false))  which is the same as   if(true)
>
> Some people find it helpful to draw Venn diagrams of their boolean
> logical expressions.  See
> http://www.lib.csub.edu/infocomp/search/boolean/venn.htm
> for a simple description of those.
>
> -Rasmus
>
>
>


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