Discrete Mathematics and Its Applications, Seventh Edition

Published by McGraw-Hill Education
ISBN 10: 0073383090
ISBN 13: 978-0-07338-309-5

Chapter 2 - Section 2.1 - Sets - Exercises - Page 125: 5


a) Both sets are equal b) The two sets are not equal c) The two sets are not equal

Work Step by Step

a) The 2 sets are equals because they both have the same elements: 1, 3 and 5. It is important to note that the order and repetitions of some elements do not matter. b) The first set has 1 set as an element. The second set has the element 1 and 1 set as elements. So they are not equals (1 element versus 2 elements) c) The first one is an empty set, it has nothing, or 0 elements. The second set is a set of 1 element (The element in that set is an empty set). (0 element versus 1 element). So they are not equal.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.