Prove that a set of real numbers E is closed and bounded if and only if every infinite subset of E has a point of accumulation that belongs to E

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter6: More On Rings
Section6.3: The Characteristic Of A Ring
Problem 13E
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Prove that a set of real numbers E is closed and bounded if and only if every infinite subset of E has a point of accumulation that belongs to E

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