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+2 votes
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1. For Recursive enumerable languages , we can not draw state diagram

2. CFL is closed under Complement , By making accepting states as rejecting states and vice versa

3. L = { ap | p is prime number } is recursive enumerable language

4. If a language is closed under complement,union then it is closed under intersection

     since (L1' ∪ L2')' = L1 ∩ L2

asked in Theory of Computation by Boss (14.1k points)
edited by | 52 views

1 Answer

+1 vote

A) Recursive Enumerable language have Turing Machine.So ofcourse we can draw state transition diagram. 

B)CFL is not closed under complementation.

C) It is CSL so, RE too.

D)True.

answered by Active (2k points)


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