On Mon, Jul 13, 2015  Pierz <[email protected]> wrote:

​> ​
> Here's something that bothers me when I try to think of the brain too much
> as a computer. How would I teach a computer the notion of infinity?
>

​A computer already knows about some integers, and it knows how to find the
successor to some integers; it's true that it doesn't know how to find the
​successor to all the integers because there are too many of them, but you
and I don't know how to do that either.

​And for a few hundred dollars you can buy a program to run on your home
computer that can deal with infinity, Mathematica;  it has a symbol for
infinity, and it is the English word "infinity". So if you tell
​ Mathematica to evaluate 1/infinity it will tell you it's zero.
Mathematica can also tell you what the sum of a sequence of numbers is,
like 1/1^2 + 1/2^2 + 1/3^2 +....1/N^2 , and if you tell  Mathematica that
N= "infinity" it will tell you that the sum of that sequence is PI^2/6
which is correct. It would look like this:

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Out[1]=
 John K Clark




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  John K Clark

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