quasi
Posts:
9,078
Registered:
7/15/05
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Re: Cardinality of turning wheel
Posted:
Mar 2, 2013 2:39 PM
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netzweltler wrote:
>What is the cardinality of the number of revolutions of a
>turning wheel, if there is no beginning and no end to it?
For a wheel revolving forever (both past and future), the
set of revolutions is in one-to-one correspondence with the
set of integers, hence has cardinality aleph-0.
quasi
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