Question about the intervals (b,b) and [b,b]...


by AxiomOfChoice
Tags: intervals
AxiomOfChoice
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#1
Nov11-09, 03:22 PM
P: 517
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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Hurkyl
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Nov11-09, 03:30 PM
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Quote Quote by AxiomOfChoice View Post
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).
These statements look correct to me.


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