Date: Mar 21, 2013 7:21 AM
Author: mueckenh@rz.fh-augsburg.de
Subject: Re: Matheology § 224

On 21 Mrz., 11:36, YBM <ybm...@nooos.fr.invalid> wrote:
> Le 21.03.2013 07:54, WM a crit :
>

> > Every not necessary line can be removed. Why do you think there should
> > remain unnecessary lines? And if they are needed, which it the first
> > unnecessary line that must remain?

>
> Which is the leg which is necessary in order for a dog to have more
> than two legs?
>

Try to understand set inclusion.

Regards, WM