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In computability and complexity, finding mappings between problems that allow solving one problem using a solution of another one. For reduction in programming language theory (e.g. beta-reduction), see [lambda-calculus] or [term-rewriting].

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Deteremine if $L = \{\langle M\rangle : L(M) \text{ consits of all words of prime length}\}$...

Deteremine if $L = \{\langle M\rangle : L(M) \text{ consits of all words of prime length}\}$ is in $R$ or in $RE\setminus R$ or not in $RE$ I am trying to prove that $L$ is not in $RE$ by reduction …
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