|Nov11-09, 03:22 PM||#1|
Question about the intervals (b,b) and [b,b]...
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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