COMPUTABLE STRUCTURES AND THE HYPERARITHMETICAL HIERARCHY PDF
COMPUTABLE. STRUCTURES AND THE. HYPERARITHMETICAL. HIERARCHY. C.J. ASH ‘. J. KNIGHT. University of Notre dame. Department of Mathematics. In recursion theory, hyperarithmetic theory is a generalization of Turing computability. Each level of the hyperarithmetical hierarchy corresponds to a countable ordinal .. Computable Structures and the Hyperarithmetical Hierarchy , Elsevier. Book Review. C. J. Ash and […]