Re: Mixing OO and DB

From: Marshall <marshall.spight_at_gmail.com>
Date: Sat, 23 Feb 2008 11:29:57 -0800 (PST)
Message-ID: <3516631c-7629-4efc-9be4-7301dbe7b807_at_o10g2000hsf.googlegroups.com>


On Feb 23, 2:41 am, "Dmitry A. Kazakov" <mail..._at_dmitry-kazakov.de> wrote:
>
> You cannot provide any non-trivial finite
> subset of reals closed on multiplication.
>
> Ah, especially for you (:-)):
>
> _def_ non-trivial subset:
>
> contains 2
>
> _def_ closed on multiplication:
>
> forall x,y in S, exists z in S, such that z = x*y

Oh, I almost forgot: since you leave out so many of your assumptions, your challenge also admits a particularly appealing answer:

  R

Marshall Received on Sat Feb 23 2008 - 20:29:57 CET

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