Omitting Types in Fragments and Extensions of First Order Logic

Autor: Tarek Sayed Ahmed
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Bulletin of the Section of Logic, Vol 50, Iss 3, Pp 249-287 (2021)
Druh dokumentu: article
ISSN: 0138-0680
2449-836X
DOI: 10.18778/0138-0680.2021.13
Popis: Fix \(2 < n < \omega\). Let \(L_n\) denote first order logic restricted to the first n variables. Using the machinery of algebraic logic, positive and negative results on omitting types are obtained for \(L_n\) and for infinitary variants and extensions of \(L_{\omega, \omega}\).
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