Discrete Mathematics with Applications 4th Edition

Published by Cengage Learning
ISBN 10: 0-49539-132-8
ISBN 13: 978-0-49539-132-6

Chapter 2 - The Logic of Compound Statements - Exercise Set 2.4 - Page 77: 25

Answer

Circuit

Work Step by Step

If at least two are required to be on for the system to be activated, you can use 3 XNOR gates so that at least one outputs 1 any two inputs are active. You can then OR3 each XNOR together so the output is active for any given combination of two, or if all three are active
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