Boolean logic gate question

Discussion in 'Homework Help' started by fran1942, Oct 11, 2010.

  1. fran1942

    Thread Starter Member

    Jul 26, 2010
    58
    0
    Hello, my lecturer gave us this logic diagram and truth table, but I am confused by the outcome of the first truth table line eg. A0, B0, C0.
    Should that line not equal 1 ?

    Also, is the Boolean expression correct for this diagram ?

    Thanks kindly for any help.
     
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  2. Georacer

    Moderator

    Nov 25, 2009
    5,142
    1,266
    Quite correctly, first line's result is 1.

    But the parenthesis in the boolean expression defies every mathematical convetion: Enclosing only a term and an operator? Just kidding, I 'm sure it's just a typo.

    The correct form is f=\bar{AB+(B+C)}.
     
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