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From: "Yagotta B. Kidding" <ybk@mymail.com>
Newsgroups: comp.object,comp.databases.theory
Subject: Re: Mixing OO and DB
Date: Sat, 23 Feb 2008 04:02:34 +0100 (CET)
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"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> wrote in 
news:1uslk379r2ino$.1scu4stwa18dk$.dlg@40tude.net:

> On Fri, 22 Feb 2008 12:57:03 -0800 (PST), JOG wrote:
> 
>> Anyone got any ideas how circles 'behave' exactly?
> 
> They do such that:
> 
> 1. the length of a circle is 2 Pi R
> 2. the diameter of is the longest chord of
> 3. the area of is Pi R**2
> ...
> 
> Behavior = set of provable statements about circles.
> 

In the light of my recently discovered lemma, what I am about to say is 
probably pointless, but being in a charitable mood I'll try anyway.

The set of provable statements about the circle is a simple consequence 
of the Eucledean postulates (or their Hilbert's reformulation).  As such,  
the provable statements do not add any new information (or "behaviour") 
to what is formulated by the third Postulate.

More interestinly though,  your definition of behaviour is rather at odds 
with the accepted OOP use of the term as  the collection of 'methods' of 
a specific class.  Surely, an OOP practitioner should know better than 
that !