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Topic: Infinity and all the rest
Replies: 15   Last Post: Oct 24, 2013 8:56 PM

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Michael Klemm

Posts: 80
Registered: 11/13/12
Re: Infinity and all the rest
Posted: Oct 24, 2013 8:20 AM
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WM wrote:

> This super task does nothing make anything difficult. Three lines are
> enough:


> Start with n = 1 and the empty set M. In the nth step union M with the set
> of all rationals of the interval (n-1, n]. Take off the rational number
> q_n (as enumerated by Cantor). Go > to step n+1.


Why should (n-1,n] contain q_n?

Regards
Michael




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