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Which of the following is a function of Closure properties?

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Which of the following is a function of Closure properties?

(a) Helps construct representations

(b) Helps show informally described languages not to be in class

(c) Both (a) and (b)

(d) None of the mentioned

I have been asked this question in examination.

The question is from Testing Emptiness and Membership topic in portion Properties of Regular Languages of Automata Theory

1 Answer

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Right answer is (c) Both (a) and (b)

Explanation: Using closure properties we can give a=solution to many problems like :

Is the regular languages L1 and L2 closed on concatenation operation?, etc.

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