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Let $L$ be recursively enumerable and let $\overline{L}$ be non-RE. Consider the language

$L' = \left\{0w\mid w\ \text{is in}\ L \right\}$

Can you say for certain whether $L'$ or its complement are recursive, RE, or non-RE? Justify your answer.
in Theory of Computation by Veteran (59.3k points) | 8 views

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