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For question borderline with, or having application to, computer science. Consider also posting http://cs.stackexchange.com/ or http://cstheory.stackexchange.com/ instead of here, if appropriate.

10 votes

Between mu- and primitive recursion

One can consider programming formalisms where a program is a pair (M, P), with M a Turing machine and P a proof that M halts on all inputs. Then, if the proof is correct, (M, P)(x) = M(x); if it is in …
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