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Get Full Access to Discrete Mathematics And Its Applications - 7 Edition - Chapter 2.5 - Problem 13e
Get Full Access to Discrete Mathematics And Its Applications - 7 Edition - Chapter 2.5 - Problem 13e

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# Explain w by the set A is countable if and only if |A| ISBN: 9780073383095 37

## Solution for problem 13E Chapter 2.5

Discrete Mathematics and Its Applications | 7th Edition

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Problem 13E

Problem 13E

Explain w by the set A is countable if and only if |A| ≤ |Z+|.

Step-by-Step Solution:

SOLUTION

We need to show that a set A is countable if and only if Step 1

By definition, A set is called countable if it is finite or it has the same cardinality as the set of positive integers .

Step 2 of 6

Step 3 of 6

##### ISBN: 9780073383095

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