Talk:Relative computability

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co-A-recursive sets

Arithmetical hierarchy links to co-A-recursive sets, which redirects here, but this article doesn't define co-A-recursive sets.--Bcrowell 22:34, 24 February 2006 (UTC)[reply]

At the moment, only the redlink above links to co-A-recursive sets, which is good because a set is co-A-recursive if and only if it is A-recursive. CMummert 22:47, 26 August 2006 (UTC)[reply]