Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 2 - Set Theory - 2.2 Subsets - Exercise Set 2.2: 55


{border collie, poodle} {border collie} {poodle} {}

Work Step by Step

We need to list all subsets of the following set: A = {border collie, poodle} Those subsets are: {border collie, poodle} {border collie} {poodle} {} We reach the solution by examining all combinations of taking one or more element from A to get a list of subsets. Both A itself and an empty set are subsets of A.
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