decidability/undecidability of the following problem. Machine M, state q of M and string x E E*, will input x eve there an n such that (s, - x,0) → (q, a, n)?

Database System Concepts
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Discuss the decidability/undecidability of the following problem.
Given Turing Machine M, state q of M and string x∈Σ∗, will input x ever enter state q?
Formally, is there an ? such that (?,⊢x,0)∗→(q,a,n)?

a) Discuss the decidability/undecidability of the following problem.
Given Turing Machine M, state q of M and string x e E*, will input x ever enter state q?
Formally, is there an n such that (s, E x, 0) → (q, a, n)?
Transcribed Image Text:a) Discuss the decidability/undecidability of the following problem. Given Turing Machine M, state q of M and string x e E*, will input x ever enter state q? Formally, is there an n such that (s, E x, 0) → (q, a, n)?
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