A Lindström theorem for modal logic:

Abstract: "A modal analogue of Lindström's characterization of first-order logic is proved. Basic modal logics are characterized as the only modal logics that have a notion of finite rank, or, equivalently, as the strongest modal logic whose formulas are preserved under ultraproducts over...

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Bibliographic Details
Main Author: Rijke, Maarten de (Author)
Format: Book
Language:English
Published: Amsterdam 1994
Series:Centrum voor Wiskunde en Informatica <Amsterdam> / Department of Computer Science: Report CS 94,56
Subjects:
Summary:Abstract: "A modal analogue of Lindström's characterization of first-order logic is proved. Basic modal logics are characterized as the only modal logics that have a notion of finite rank, or, equivalently, as the strongest modal logic whose formulas are preserved under ultraproducts over [omega]."
Physical Description:13 S.

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