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.

Rod Downey

doi:10.2307/2275592

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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.

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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.

To save this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Google Drive account. Find out more about saving content to Google Drive.

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.

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