[sc34wg3] TMQL: Operators "Not equal"

Robert Barta rho at devc.at
Mon Oct 29 05:36:57 EDT 2007

On Fri, Oct 26, 2007 at 01:23:13PM -0400, G. Ken Holman wrote:
> So, when dealing with sets, the assertion that "x!=y" is equivalent 
> to "not(x=y)" is not true whether or not the node sets are empty.  I 
> suppose they would only be equivalent if the node set were a 
> singleton (which doesn't really make it a set).
> I hope this is considered helpful ... I'm risking jumping into the 
> middle of a discussion not knowing its background because what I 
> skimmed this time raised a caution flag that I thought might be meaningful.

I think you are spot-on, and the very fact that you are guessing
the correct semantics is probably a good sign :-)

And then he said: "You should read my blog." http://kill.devc.at/

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