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Topic: Mathematics in brief
Replies: 84   Last Post: Dec 11, 2012 3:23 AM

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mueckenh@rz.fh-augsburg.de

Posts: 16,185
Registered: 1/29/05
Re: Mathematics in brief
Posted: Dec 9, 2012 4:38 PM
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On 9 Dez., 22:29, Virgil <vir...@ligriv.com> wrote:

> > With respect to real numbers we need not only the answer to the
> > question whether x is a real number, but we need trichotomy with
> > respect to every real number. Undefinable numbers cannot satisfy this
> > need.

>
> WM may need it, but if the issue is only whether something is or is not
> a real number, there are definitions of what is a real number that does
> need not establish its trichotomy with anything.
>
> Trichotomy is a derived property not a definitional one of some
> definitions of the reals.


Then you have another idea of real number. Be happy with it. For doing
mathematics including real calculations trichotomy is indispensable.

Regards, WM


Date Subject Author
12/8/12
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Zaljohar@gmail.com
12/8/12
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mueckenh@rz.fh-augsburg.de
12/8/12
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Zaljohar@gmail.com
12/8/12
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mueckenh@rz.fh-augsburg.de
12/8/12
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Virgil
12/9/12
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mueckenh@rz.fh-augsburg.de
12/9/12
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Virgil
12/9/12
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mueckenh@rz.fh-augsburg.de
12/9/12
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Virgil
12/9/12
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fom
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mueckenh@rz.fh-augsburg.de
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mueckenh@rz.fh-augsburg.de
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Virgil
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mueckenh@rz.fh-augsburg.de
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Virgil
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Virgil
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mueckenh@rz.fh-augsburg.de
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Virgil
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12/8/12
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mueckenh@rz.fh-augsburg.de
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Virgil
12/9/12
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Virgil
12/9/12
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Charlie-Boo
12/8/12
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Virgil
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Virgil
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12/10/12
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12/11/12
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12/9/12
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12/9/12
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Virgil

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