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Re: Is {{}} a valid construct?

From: Marshall <marshall.spight_at_gmail.com>
Date: 5 Feb 2007 23:03:40 -0800
Message-ID: <1170745420.537202.62680@s48g2000cws.googlegroups.com> 





On Feb 5, 9:02 pm, "Neo" <neo55..._at_hotmail.com> wrote:

>




> With invalid elements ( {} ), flip a coin as to which is correct for

> the last one.




Nope.



A necessary precondition for getting unconfused
is figuring out the difference between the empty set
and the set containing the empty set.




Marshall
Received on Tue Feb 06 2007 - 01:03:40 CST












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