9.) [30 points] Prove that, if a language L is decidable, then L can be enumerated...
9. (1 point) Alice claims that a language is decidable if there exists some non-deterministic TM that decides it. Bob claims that a language is decidable if there exists some deterministic TM that decides it. Whose claim is correct? A. Both Alice's and Bob's. B. Only Alice's. C. Only Bob's. D. Neither Alice's nor Bob's. 10. (1 point) Which of the following is true? A. If an enumerator enumerates a language L, then L is decidable. B. If a language...
2. Suppose a language is decidable. • Prove the language is recognizable. • Prove the language’s complement is also recognizable.
determine if the language is regular, context-free, Turing-decidable, or undecidable. For languages that are regular, give a DFA that accepts the language, a regular expression that generates the language, and a maximal list of strings that arc pairwise distinguishable with respect to the language. For languages that are context-free but not regular, prove that the language is not regular and either give a context- free grammar that generates the language or a pushdown automaton that accepts the language. You need...
I need to prove follow: Let be a semi-decidable language. Then the language (Kleene star) is semi-decidable. We were unable to transcribe this imageWe were unable to transcribe this image
determine if the language is regular, context-free, Turing-decidable, or undecidable. For languages that are regular, give a DFA that accepts the language, a regular expression that generates the language, and a maximal list of strings that are pairwise distinguishable with respect to the language. For languages that are context-free but not regular, prove that the language is not regular and either give a context- free grammar that generates the language or a pushdown automaton that accepts the language. You need...
Prove that a language A is decidable if and only if it is finite or there is a computable function f : N → {0,1)' such that range(f) = A and each f(n) comes strictly before f(n + 1) in the standard enumeration of 10, 1*.
. Show that a language is decidable if and only if some enumerator prints the strings in the language in lexicographical order.
3b. Consider the language FIN = { | M is a Turing machine and L(M) is finite }. Prove FIN is not decidable.
Show that the following language is decidable. L={〈A〉 | A is a DFA that recognizes Σ∗ } M =“On input 〈A〉 where A is a DFA:
true or False with prove? (f) ___ NP =co-NP (g) The complement of any recursive language is recursive. h) The grader's problem is decidable. We say programs Pi and P are equivalent if they give the same output if given the same input. The problem is to decide whether two programs (in C++, Pascal, Java, or some other modern programming language) are equivalent. )Given any CF language L, there is always an unambiguous CF grammar which generates L 6)Given any...