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proof of compactness theorem for first order logic

Major Section: 
Reference
Type of Math Object: 
Proof

Mathematics Subject Classification

03B10 no label found03C07 no label found

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I have written an entry defining (\lambda,\kappa)-compactness, which should perhaps be referenced from here. The theorem that L_{\omega\omega} is (\omega,\omega)-compact is essentially the theorem that first order logic is compact in the sense used here.

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