"open interval." YourDictionary, n.d. Web. 16 May 2018. <http://www.yourdictionary.com/open-interval>.
open interval. (n.d.). Retrieved May 16th, 2018, from http://www.yourdictionary.com/open-interval
(plural open intervals)
(mathematics) an interval in the real number line which does not contain its supremum and infimum. If specified by a pair of real numbers, then it consists of all the points on the real line whose values lie strictly between those two real numbers.
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