a. JRT+RRT
5.
Boolean Algebra is a method of mathematically representing logical
b. LMM+LML
operations. In order to represent logical operations, a set of basic
+LMT
laws and identities has been developed for Boolean Algebra. It is not
c. PT+PP+PPT
as important to know these laws and identities by name as it is to
d. AN+AC+NN
+NC
know when and how to put them to use. One of the basic laws of
Boolean Algebra is the law of IDENTITY, which states: "Any letter,
number, or expression is equal to itself." For example, A = A; B = B
C = C; RJ = RJ; etc. The switching-circuit diagram and the truth
table of the law of IDENTITY are shown below.
LAW OF IDENTITY
Select examples of the law of IDENTITY from the following.
a. 1 = 1
e. A = B
b. A = B
f. O = O
c. A = 1
g. A = A
d. B = B
h. AB = AB
IT 0344
1-4
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