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Which of the following is/are CFL not closed under?

(a) Reverse

(b) Homomorphism

(c) Inverse Homomorphism

(d) All of the mentioned

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Correct choice is (d) All of the mentioned

The best I can explain: CFL is closed under union, kleene and concatenation along with the properties reversal,homomorphism and inverse homomorphism but not difference and intersection.

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