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Get Full Access to Discrete Mathematics And Its Applications - 7 Edition - Chapter 2.5 - Problem 27e
Get Full Access to Discrete Mathematics And Its Applications - 7 Edition - Chapter 2.5 - Problem 27e

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# Show that the union of a countable number of countable

ISBN: 9780073383095 37

## Solution for problem 27E Chapter 2.5

Discrete Mathematics and Its Applications | 7th Edition

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Problem 27E

Show that the union of a countable number of countable sets is countable.

Step-by-Step Solution:

SolutionIn this question we have to prove that the union of a countable number of countable sets is countable.Step 1Let us assume that B and C are two countable sets.Then, BC is also finite and therefore countable.

Step 2 of 4

Step 3 of 4

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