Logical operations and invariance

Journal of Philosophical Logic 36 (1):33 - 60 (2007)
I present a notion of invariance under arbitrary surjective mappings for operators on a relational finite type hierarchy generalizing the so-called Tarski-Sher criterion for logicality and I characterize the invariant operators as definable in a fragment of the first-order language. These results are compared with those obtained by Feferman and it is argued that further clarification of the notion of invariance is needed if one wants to use it to characterize logicality
Keywords logical operations  logical constants
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References found in this work BETA
John Corcoran & Alfred Tarski (1986). What Are Logical Notions? History and Philosophy of Logic 7 (2):143-154.

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Citations of this work BETA
Johan Van Benthem & Denis Bonnay (2008). Modal Logic and Invariance. Journal of Applied Non-Classical Logics 18 (2-3):153-173.

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