Virgil
Posts:
4,483
Registered:
1/6/11
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Re: Mathematics in brief
Posted:
Dec 10, 2012 2:21 PM
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In article
<ca2e0193-c07c-4cf4-9b26-b3f39336ac41@r14g2000vbe.googlegroups.com>,
WM <mueckenh@rz.fh-augsburg.de> wrote:
> On 9 Dez., 23:58, Virgil <vir...@ligriv.com> wrote:
>
> > And it is quite possible and occasionally necessary to speak of
> > properties of some real x without knowing or caring about its position
> > relative to 0.
>
> Then you do not talk about a number but about the properties of a set
> of numbers which have all this same property.
One can talk about just one number as having certain properties without
caring whether any others have those same properties, so the issue of
whether there is more than one such number is then irrelevant.
>
> A real number has to have a binary expansion, and, if in the unit
> interval, has to have a path in the Binary Tree.
And infinitely many of them have two paths in the binary tree.
However being aware of WHICH path or paths is irrelevant most of the
time.
As are many of the other things WM concentrates on.
>
> Regards, WM
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