Just come across this question on a problem sheet and it's got me rather confused!(adsbygoogle = window.adsbygoogle || []).push({});

You have to prove that |[0,1]|=|[0,1)|=|(0,1)| without using Schroeder-Bernstein and using the Hilbert Hotel approach. After looking at the Hilbert Hotel idea I can't really understand how this helps! This questions quite bugging me now!

Thanks for any help!

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# Cardinality, Hilbert Hotel

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