Goodman's Extensional Isomorphism and Syntactical Interpretations

Marek Polanski

Abstract


The aim of the present paper is to provide a model-theoretic explication of Goodman's concept
of extensional isomorphism. After some conceptual clarifications Goodman's concept of isomorphy
turns out to be closely related to some variant of set-theoretic definability and some variants
of syntactical interpretability.

Keywords


Goodman, extensional isomorphism, syntactical interpretations, model theory

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DOI: http://dx.doi.org/10.1387/theoria.442