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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