Which one of the following statement is false?
A. Context-free languages are closed under union.
B. Context-free languages are closed under concatenation.
C. Context-free languages are closed under intersection.
D. Context-free languages are closed under Kleene closure.
Answer:D
Which one of the following statement is false?
A. Context-free languages are closed under union. B. Context-free languages are closed under concatenation. C. Context-free languages are closed under intersection. D. Context-free languages are closed under Kleene closure.