Talk:Relative computability

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)


 * 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)