By considering the collection of closed intervals {[1- 2+ :n € N}in R, show that the union of an infinite number of closed sets need not be closed.
By considering the collection of closed intervals {[1- 2+ :n € N}in R, show that the union of an infinite number of closed sets need not be closed.
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
ChapterP: Prerequisites
SectionP.2: Real Numbers
Problem 3E: Express the set of real numbers between but not including 2 and 7 as follows. (a) In set-builder...
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