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RE: XPath: all elements with only non-parent children with identical style attr
- From: "Michael Kay" <michael dot h dot kay at ntlworld dot com>
- To: <xsl-list at lists dot mulberrytech dot com>
- Date: Fri, 14 Dec 2001 09:59:27 -0000
- Subject: RE: [xsl] XPath: all elements with only non-parent children with identical style attr
- Reply-to: xsl-list at lists dot mulberrytech dot com
> Mike Kay wrote:
> > A != A, where A is a node-set, is true if there is some node
> > in A that is
> > unequal to another node in A.
>
> which surely blows out of the water the application of George Boole
> and his theorems to xslt?
There's never been any question about that: the XPath = and != operators are
clearly non-Boolean. Hence the discussion in XSLT Prog Ref (2nd ed) p 370.
Of course Boolean logic still applies once you expand the operators, reading
A = B
as shorthand for
some $a in A, $b in B satisfies $a = $b
Mike Kay
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