倒钩 发表于 2025-3-21 16:14:59

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babble 发表于 2025-3-21 22:50:41

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有偏见 发表于 2025-3-22 03:39:49

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思乡病 发表于 2025-3-22 06:31:49

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SLAY 发表于 2025-3-22 11:49:43

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fibula 发表于 2025-3-22 13:09:14

Miscellaneous,predicates. We can divide (§ 29) the arithmetical predicates into classes (which have elements in common) where the smallest class is that of the recursive and a further class is that of the recursively enumerable predicates which we shall discuss in § 28.

fibula 发表于 2025-3-22 19:30:17

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Mercurial 发表于 2025-3-22 23:44:37

https://doi.org/10.1057/9781137330475predicates. We can divide (§ 29) the arithmetical predicates into classes (which have elements in common) where the smallest class is that of the recursive and a further class is that of the recursively enumerable predicates which we shall discuss in § 28.

outrage 发表于 2025-3-23 01:43:53

Undecidable Predicates, undecidable. It is easy to show the undecidability of many predicates . which are definable by the help of concepts which are directly connected with the concept of algorithm. Typical of these proofs is that they operate using a diagonal procedure.

假装是你 发表于 2025-3-23 07:48:35

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查看完整版本: Titlebook: Enumerability · Decidability Computability; An Introduction to t Hans Hermes Book 19692nd edition Springer-Verlag Berlin · Heidelberg 1969