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Preprint Number 2470
2470. Martin Hils, Martina Liccardo and Pierre Touchard Stably Embedded Pairs of Ordered Abelian Groups E-mail: Submission date: 19 August 2023 Abstract: We investigate when an ordered abelian group G is stably embedded in a given elementary extension H. We focus on a large class of ordered groups which includes maximal ordered groups with interpretable archimedean valuation. We give a complete answer for groups in this class which takes the form of a transfer principle for valued groups. It follows in particular that all types in the lexicographic product ∏_{i ∈ ω} ℤ are definable. Mathematics Subject Classification: Keywords and phrases: |
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