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5th Edition

EPP + 1 other

Publisher: Cengage Learning,

ISBN: 9781337694193

Chapter 6.2, Problem 2ES

Textbook Problem

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The following are two proofs that for all sets *A *and *B*,
__
__

**Proof:**

To determine

**(a)**

Proof: Suppose

**Given information:**

**Concept used:**

**Calculation:**

Suppose

To show that

That is, every element in

From the definition of subtraction of sets

So any element in

By this, conclude that

To determine

**(b)**

Suppose

Discrete Mathematics With Applications

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