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Separation principles in the hierarchy theory of pure first-order logic1
Published online by Cambridge University Press: 12 March 2014
Extract
This paper answers negatively the chief remaining open questions concerning the separation properties of first-order prefix classes of structures (discussed by Addison [2], pp. 26–37).
1. Preliminaries. The first and second separation properties and the reduction property are defined for arbitrary classes of subsets of an arbitrary set.
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- Research Article
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- Copyright
- Copyright © Association for Symbolic Logic 1964
Footnotes
This paper is from the author's doctoral dissertation which was written at the University of Michigan.
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