信徒 发表于 2025-3-25 07:15:42

Syntax of First-Order LanguagesIn this chapter we introduce the first-order languages. They obey simple, clear formation rules. In later chapters we shall discuss whether, and to what extent, all mathematical propositions can be formalized in such languages.

骚动 发表于 2025-3-25 10:13:18

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任命 发表于 2025-3-25 12:58:46

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Ossification 发表于 2025-3-25 16:21:47

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积习难改 发表于 2025-3-25 20:48:29

Lindström’s TheoremsIn this final chapter we present some results, due to Lindström , which we have already mentioned several times. They show that first-order logic occupies a unique place among logical systems. Indeed, we shall prove:

critique 发表于 2025-3-26 01:07:48

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清楚说话 发表于 2025-3-26 07:10:40

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绝缘 发表于 2025-3-26 09:52:21

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本土 发表于 2025-3-26 15:42:34

https://doi.org/10.1007/978-1-4757-2355-7Arithmetic; Equivalence; Logic; Mathematische Logik; compactness theorem; mathematical logic; model theory

抚慰 发表于 2025-3-26 18:14:56

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查看完整版本: Titlebook: Mathematical Logic; H.-D. Ebbinghaus,J. Flum,W. Thomas Textbook 19942nd edition Springer Science+Business Media New York 1994 Arithmetic.E