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Question about the intervals (b,b) and [b,b]...by AxiomOfChoice
Tags: intervals 
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#1
Nov1109, 03:22 PM

P: 529

Let b be a real number. Correct me if I'm wrong, but it seems that:
(1) The interval (b,b) is empty, as are the intervals (b,b] and [b,b). (2) The interval [b,b] consists of a single point (namely, b). 


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