Grammar that produce more than one Parse tree for same sentence is
Automaton accepting the regular expression of any number of a ‘ s is
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Given the following statements : (i) Recursive enumerable sets are closed under complementation. (ii) Recursive sets are closed under complements. Which is/are the correct statements ?
Assume statements S1 and S2 defined as : S1 : L2-L1 is recursive enumerable where L1 and L2 are recursive and recursive enumerable respectively. S2 : The set of all Turing machines is countable. Which of the following is true ?
The context free grammar S → A111|S1, A → A0 | 00 is equivalent to
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26 videos|66 docs|30 tests
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