Q. Which of the following technique is used to find whether a natural language isnt recursive ennumerable?

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Q. Diagonalization can be useful in:

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Q. Which of the following are undecidable problems?

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Q. Which of the following are incorrect options?

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Q. If a problem has an algorithm to answer it, we call it _________

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Q. Which of the following are decidable problems?

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Q. Which one of the following is true for the given?
A={(M,w)|M is a turing machine that accepts string w}

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Q. Statement: If L id R.E., L^c needs to be R.E. Is it correct?

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Q. Which of the following is true for The Halting problem?

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Q. With reference to binary strings, state true or false:
Statement: For any turing machine, the input alphabet is restricted to {0,1}.

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Q. With reference to enumeration of binary strings, the conversion of binary strings to integer is possible by treating the resulting string as a base ____ integer.

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Q. The decision problem is the function from string to ______________

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Q. A language L is said to be ____________ if there is a turing machine M such that L(M)=L and M halts at every point.

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Q. Which aong the following are undecidable theories?

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Q. Rec-DFA = { | M is a DFA and M recognizes input w}.
Fill in the blank:

Rec-DFA is ___________

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Q. Which among the following are semi decidable?

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Q. The language accepted by a turing machine is called ____________

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Q. Decidable can be taken as a synonym to:

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Q. The problems which have no algorithm, regardless of whether or not they are accepted by a turing machine that fails to halts on some input are referred as:

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Q. An algorithm is called efficient if it runs in ____________ time on a serial computer.

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