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Theoria. Revista de Teoría, Historia y Fundamentos de la Ciencia

Volume 24, Issue 2, May 2009

Marek Polański
Pages 203-211

Goodman's Extensional Isomorphism and Syntactical Interpretations

The aim of the present paper is to provide a model-theoretic explication of Nelson Goodman’s concept of extensional isomorphism. The term "extensional isomorphism" has been informally introduced by Nelson Goodman in the beginning paragraph of his The Structure of Appearance. After some conceptual clarications Goodman’s concept of isomorphy turns out to be closely related to some variant of set-theoretic denability and some variants of syntactical interpretability.

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