Re: Is {{}} a valid construct?
From: Bob Badour <bbadour_at_pei.sympatico.ca>
Date: Tue, 06 Feb 2007 12:18:14 GMT
Message-ID: <am_xh.3101$R71.47551_at_ursa-nb00s0.nbnet.nb.ca>
>
> Nope.
>
> A necessary precondition for getting unconfused
> is figuring out the difference between the empty set
> and the set containing the empty set.
Date: Tue, 06 Feb 2007 12:18:14 GMT
Message-ID: <am_xh.3101$R71.47551_at_ursa-nb00s0.nbnet.nb.ca>
Marshall wrote:
> 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.
Or the ordered singlet containing the empty... Received on Tue Feb 06 2007 - 13:18:14 CET