# In 1-3 assume that B is a Boolean algebra with operation s = and ‘. Give the reasons needed to fill in the blanks in the proofs using only the axioms for a Boolean algebra. Universal bound law for +: For every a in B . a + 1 = 1 Proof: Let a be any element of B . Then a + 1 = a + ( a + a ¯ ) ( a ) = ( a + a ) + a ¯ ( b ) = a + a ¯ by Example 6 .4 .2 =1 (c)

### Discrete Mathematics With Applicat...

5th Edition
EPP + 1 other
Publisher: Cengage Learning,
ISBN: 9781337694193

### Discrete Mathematics With Applicat...

5th Edition
EPP + 1 other
Publisher: Cengage Learning,
ISBN: 9781337694193

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Chapter 6.4, Problem 2ES
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