Member Avatar for aVar++

First of all, yes this is a homework question however I am not asking you to do it for me I just need something clarified :)

My homework is create a truth table for:

Q = NOT (X OR Y) AND Z

Now, is the 'AND Z' also included in the NOT?

If that didn't make sense, X OR Y is basically, if !X OR Y... right? But is it also NOT Z or does Z need to be true?

For example would it be:

X   Y   Z   X OR Y  Q

0   0   1       0   1



OR

X   Y   Z   X OR Y  Q

0   0   1       0   0
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  • Latest Post Latest Post by deceptikon
Member Avatar for deceptikon

In general, boolean logic precedence rules place NOT first, then AND, then OR. So in your example, it would go like this:

(NOT (X OR Y)) AND Z

Or broken down using temporaries:

A = X OR Y
B = NOT A
C = B AND Z
Q = C
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