GATE | GATE CS 1999 | Question 5
Context free languages are closed under-
(A) Union, Intersection
(B) Union, Kleene closure
(C) Intersection, Complement
(D) Complement, Kleene closure
Explanation: Context free languages are closed under: Union, Concatenation and Kleene closure but not in Intersection and Complement.
Option (B) is correct.
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