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Quasi-Truth as Truth of a Ramsey Sentence

Lutz, Sebastian (2011) Quasi-Truth as Truth of a Ramsey Sentence. [Preprint]

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I show the quasi-truth of a sentence in a partial structure to be equivalent to the truth of a specific Ramsey sentence in a structure that corresponds naturally to the partial structure. Hence quasi-truth, the core notion of the partial structures approach, can be captured in the terms of the received view on scientific theories as developed by Carnap and Hempel. I further show that a mapping is a partial homomorphism/isomorphism between two partial structures if and only if it is a homomorphism/isomorphism between their corresponding structures. It is a corollary that the partial structures approach can be expressed in first or second order model theory.

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Item Type: Preprint
Keywords: partial structure; quasi-truth; pragmatic truth; partial truth; subtruth; partial homomorphism; partial isomorphism; model theory; expansion; Ramsey sentence; received view; logical empiricism
Subjects: General Issues > Logical Positivism/Logical Empiricism
General Issues > Structure of Theories
Depositing User: Sebastian Lutz
Date Deposited: 15 Aug 2011 11:25
Last Modified: 22 Aug 2011 11:02
Item ID: 8755

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