There are three logical operations. They are AND, OR, and
NOT. They justify the difference true and false in different ways according to
what they are made to do.
AND: When one is true and the other is also true, the result
is true. When one is false and the other is true, it is still false and when
both are false, it is false.
OR: When one is true and the other is also true, the result
is true. When one is false and the other is true, it is still true and when
both are false, it is false.
NOT: the opposite of true is false and the opposite of false
is true.