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Preprint Number 181
181. Gareth Boxall
NIP for some pair-like theories
Submission date: 15 March 2009. Revised 20 July 2010.
Generalising work of Berenstein, Dolich and Onshuus and of Gunaydin and Hieronymi, we give sufficient conditions for a theory T_P to inherit NIP from T, where T_P is an expansion of the theory T by a unary predicate P. We apply our result to a theory, studied by Belegradek and Zilber, of the real field with a subgroup of the unit circle.
Mathematics Subject Classification: 03C45
Keywords and phrases: NIP, lovely pairs, Lang property
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