(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Is [0, infinity) a closed set?

2. Relevant equations

N/A

3. The attempt at a solution

It's easy to say that its not. But the solution in my textbook suggests otherwise. Why is this so?

Thanks!

M

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# Homework Help: Closed set?

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