We define f: * * as a computable function if some Turing machine M, on every...

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We define f: Σ* →Σ* as a computable function if some Turing machine M, on every input w, halts with just f(w) on its tape. Also, a language A is mapping reducible to language B, written A ≤m B, if there is a computable function ("coding") f: **, where for every w, WEA⇒f(W) EB fis called a reduction from A to B. Construct such an fin a way a non-expert can easily understand. Provide an example (preferably your own) for extra credit (40 pts). We define f: Σ* →Σ* as a computable function if some Turing machine M, on every input w, halts with just f(w) on its tape. Also, a language A is mapping reducible to language B, written A ≤m B, if there is a computable function ("coding") f: **, where for every w, WEA⇒f(W) EB fis called a reduction from A to B. Construct such an fin a way a non-expert can easily understand. Provide an example (preferably your own) for extra credit (40 pts).

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