Discrete Mathematics with Applications 4th Edition

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

Chapter 7 - Functions - Exercise Set 7.2 - Page 413: 2

Answer

a. A function F is one-to-one if, and only if, each element in the co-domain of F is the image of at $MOST$ one element in the domain of F. . A function F is onto if, and only if, each element in the co-domain of F is the image of at $LEAST$ one element in the domain of F.

Work Step by Step

a. A function F is one-to-one if, and only if, each element in the co-domain of F is the image of at $MOST$ one element in the domain of F. . A function F is onto if, and only if, each element in the co-domain of F is the image of at $LEAST$ one element in the domain of F.
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