Which of the following statement is false for a turing machine?
A)There exists an equivalent deterministic turing machine for every nondeterministic turing machine
B)Turing decidable languages are closed under intersection and complementation
C)Turing recognizable languages are closed under union and intersection
D)Turing recognizable languages are closed under union and complementation

Question

Quizplus · Accepted Answer

Turing recognizable languages are closed under union and intersection, but not under complementation. If a language is Turing recognizable, its complement may not necessarily be Turing recognizable, as recognizing the complement would require the machine to halt on all inputs, which is not guaranteed for Turing recognizable languages.

Which of the Following Statement Is False for a Turing