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    • Thread Starter


    What are the 'rules of Boolean algebra'?

    I have so many practise exam questions asking me to simplify expressions using the laws of Boolean algebra, and hence draw an equivalent simplified circuit.. yet have no notes on it!

    Sending me crazzzyy!! :woo:


    have all the rules. go research!

    post the question and I will have a look at it if you like.
    • PS Helper

    PS Helper
    There are a few fundamental ones that you should probably know... for example:
    A+0 = A,\ A+1 = 1,\ A+A = A,\ A+\bar{A} = 1

    A.0 = 0,\ A.1 = A,\ A.A = A,\ A.\bar{A} = 0

    A+(B.C) = (A+B).(A+C),\ A.(B+C) = A.B + A.C

    \bar{A}+\bar{B} = \overline{A.B},\ \bar{A}.\bar{B} = \overline{A+B}

    There are some more but as a general rule you can derive them from the above.
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