1. Let S be a nonempty set. (a) Give the definition for: "a is not an upper bound of S." (b) Give the definition for: "a is not a lower bound of S." (c) Give an example of S, where sup S doesn't exist but inf S exists.
1. Let S be a nonempty set. (a) Give the definition for: "a is not an upper bound of S." (b) Give the definition for: "a is not a lower bound of S." (c) Give an example of S, where sup S doesn't exist but inf S exists.
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter7: Real And Complex Numbers
Section7.1: The Field Of Real Numbers
Problem 2TFE: Label each of the following statements as either true or false.
Every upper bound of a nonempty set ...
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