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On sets effectively different from all $\Phi$-sets
Ya. L. Kreinin
Received: 08.01.1955
Citation:
Ya. L. Kreinin, “On sets effectively different from all $\Phi$-sets”, Sb. Math., 80:2 (1956)
Linking options:
https://www.mathnet.ru/eng/sm5104 https://www.mathnet.ru/eng/sm/v80/i2/p129
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