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: 73

Answer

false $\emptyset \subseteq \{\emptyset, \{\emptyset\}\}$

Work Step by Step

$\emptyset \not\subseteq \{\emptyset, \{\emptyset\}\}$ This is incorrect, for it should say: $\emptyset \subseteq \{\emptyset, \{\emptyset\}\}$ By definition, an empty set is a subset of every set.
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.