UGC-NET | UGC NET CS 2015 Dec – III | Question 22
The family of context sensitive languages is __________ under union and __________ under reversal.
(A) closed, not closed
(B) not closed, not closed
(C) closed, closed
(D) not closed, closed
Explanation: The family of context sensitive languages is not closed under union and not closed under reversal.
For more information on context sensitive languages Refer:TOC | Context-sensitive Grammar (CSG) and Language (CSL)
So, option (B) is correct.
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