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CATEGORICITY IN QUASIMINIMAL PREGEOMETRY CLASSES

Published online by Cambridge University Press:  22 January 2016

LEVON HAYKAZYAN*
Affiliation:
MATHEMATICAL INSTITUTE UNIVERSITY OF OXFORD RADCLIFFE OBSERVATORY QUARTER OXFORD, OX2 6GG, UKE-mail: [email protected]

Abstract

Quasiminimal pregeometry classes were introduced by [6] to isolate the model theoretical core of several interesting examples. He proves that a quasiminimal pregeometry class satisfying an additional axiom, called excellence, is categorical in all uncountable cardinalities. Recently, [2] showed that the excellence axiom follows from the rest of the axioms. In this paper we present a direct proof of the categoricity result without using excellence.

Type
Articles
Copyright
Copyright © The Association for Symbolic Logic 2016 

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References

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