Re: Bijections (was OM = SIGMA1)

From: Mirek Dobsicek <m.dobsicek.domain.name.hidden>
Date: Mon, 19 Nov 2007 20:14:22 +0100

Hi Bruno,

thank you for posting the solutions. Of course, I solved it by myself
and it was a fine relaxing time to do the paper work trying to be
rigorous, however, your solutions gave me additional insights, nice.

I am on the board for the sequel.

Best,
 Mirek


>
> I give the solution of the little exercises on the notion of bijection.
>

>
> So the sequel is:
>
> 1) Cantor's diagonal
> 2) are there universal computing machine? (Kleene's diagonal, and
> Church thesis)
>
> 3) A fundamental theorem about universal computing machines. (All such
> machine are imperfect, or insecure)
>
> Please ask questions. To miss math due to notation problem is like to
> miss travels due to mishandling of the use of maps, or to miss love by
> mishandling of the use of clothes ... It is missing a lot, for
> mishandling a few I wanna say.
>


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Received on Mon Nov 19 2007 - 14:21:14 PST

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