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Soare Robert I.. Automorphisms of the lattice of recursively enumerable sets. Part I: maximal sets. Annals of mathematics, ser. 2 vol. 100 (1974), pp. 80–120. - Lerman Manuel and Soare Robert I.. d-Simple sets, small sets, and degree classes. Pacific journal of mathematics, vol. 87 (1980), pp. 135–155. - Cholak Peter. Automorphisms of the lattice of recursively enumerable sets. Memoirs of the American Mathematical Society, no. 541. American Mathematical Society, Providence1995, viii + 151 pp. - Harrington Leo and Soare Robert I.. The Δ30-automorphism method and noninvariant classes of degrees. Journal of the American Mathematical Society, vol. 9 (1996), pp. 617–666.
Published online by Cambridge University Press: 12 March 2014
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- Copyright © Association for Symbolic Logic 1997