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A NOTE ON NSOP1 IN ONE VARIABLE

Published online by Cambridge University Press:  29 January 2019

NICHOLAS RAMSEY*
Affiliation:
DEPARTMENT OF MATHEMATICS UNIVERSITY OF CALIFORNIA, LOS ANGELES LOS ANGELES, CA90095, USAE-mail: nickramsey@math.ucla.edu

Abstract

We prove that, in order to establish that a theory is NSOP1, it suffices to show that no formula in a single free variable has SOP1.

Type
Articles
Copyright
Copyright © The Association for Symbolic Logic 2019 

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References

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