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Vopěnka's principle and compact logics

Published online by Cambridge University Press:  12 March 2014

J. A. Makowsky*
Affiliation:
Department of Computer Science, Technion Haifa, Israel

Abstract

We study the effects of Vopěnka's principle on properties of model theoretic logics. We show that Vopěnka's principle is equivalent to the assumption that every finitely generated logic has a compact cardinal. We show also that it is equivalent to the assumption that every such logic has a global Hanf number.

Type
Research Article
Copyright
Copyright © Association for Symbolic Logic 1985

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References

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