
doi: 10.2307/2275729
I solve here some problems left open in “T-convexity and Tame Extensions” [9]. Familiarity with [9] is assumed, and I will freely use its notations. In particular,Twill denote a completeo-minimal theory extending RCF, the theory of real closed fields. Let (,V) ⊨Tconvex, let=V/m(V)be the residue field, with residue class mapx↦:V↦, and let υ:→ Γ be the associated valuation. “Definable” will mean “definable with parameters”.The main goal of this article is to determine the structure induced by(,V)on its residue fieldand on its value group Γ. In [9] we expanded the ordered fieldto a model ofTas follows. Take a tame elementary substructure′ ofsuch thatR′ ⊆VandR′maps bijectively ontounder the residue class map, and make this bijection into an isomorphism′ ≌ofT-models. (We showed such′ exists, and that this gives an expansion ofto aT-model that is independent of the choice of′.).
Categoricity and completeness of theories, definability, Models with special properties (saturated, rigid, etc.), Model-theoretic algebra, Quantifier elimination, model completeness, and related topics, o-minimality, real closed fields, Model theory of fields
Categoricity and completeness of theories, definability, Models with special properties (saturated, rigid, etc.), Model-theoretic algebra, Quantifier elimination, model completeness, and related topics, o-minimality, real closed fields, Model theory of fields
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