檢索結果 - "Unsolvability (Mathematical logic)."

Degrees of unsolvability. 由 Sacks, Gerald E.

Cornerstones of undecidability 由 Rozenberg, Grzegorz

A hierarchy of Turing degrees a transfinite hierarchy of lowness notions in the computably enumerable degrees, unifying classes, and natural definability 由 Downey, R. G. (Rod G.), Greenberg, Noam 1974-

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