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Basic Boolean Algebra. Help!

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!(1 && !(0 || 1))

Why is this true? I just can't see it. I would appreciate any help at all. I realise it's probably easy for you.
May 2 '11 #1
1 2238
Rabbit
12,516 Recognized Expert Moderator MVP
Just work it from the inside out.

0 || 1 = False Or True = True
!(0 || 1) = Not True = False
1 && !(0 || 1) = True And False = False
!(1 && !(0 || 1)) = Not False = True
May 2 '11 #2

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