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  1. Simple types in discretely ordered structures.Dejan Ilić - 2014 - Archive for Mathematical Logic 53 (7-8):929-947.
    We introduce a notion of simplicity for types in discretely ordered first order structures. We prove that all the structure on the locus of a simple type is induced exclusively by the ordering relation. As an application we determine all possible expansions of satisfying CB = 1.
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  • Types directed by constants.Predrag Tanović - 2010 - Annals of Pure and Applied Logic 161 (7):944-955.
    Let T be a complete, countable, first-order theory having infinite models. We introduce types directed by constants, and prove that their presence in a model of T guaranties the maximal number of non-isomorphic countable models : I=2.
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  • On definability of types of finite Cantor-Bendixson rank.Predrag Tanovic - 2011 - Mathematical Logic Quarterly 57 (3):256-260.
    We prove that every type of finite Cantor-Bendixson rank over a model of a first-order theory without the strict order property is definable and has a unique nonforking extension to a global type. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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  • Asymmetric RK-minimal types.Predrag Tanović - 2010 - Archive for Mathematical Logic 49 (3):367-377.
    We consider semi-isolation on the locus of a strongly non-isolated, RK-minimal type in a small theory, and we prove that its asymmetry (as a binary relation) is caused by a specific form of the strict order property: the partial definability of semi-isolation.
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  • Theories with constants and three countable models.Predrag Tanović - 2007 - Archive for Mathematical Logic 46 (5-6):517-527.
    We prove that a countable, complete, first-order theory with infinite dcl( $ \theta $ ) and precisely three non-isomorphic countable models interprets a variant of Ehrenfeucht’s or Peretyatkin’s example.
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  • Minimal first-order structures.Predrag Tanović - 2011 - Annals of Pure and Applied Logic 162 (11):948-957.
    We prove a dichotomy theorem for minimal structures and use it to prove that the number of non-isomorphic countable elementary extensions of an arbitrary countable, infinite first-order structure is infinite.
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  • On Kueker's conjecture.Predrag Tanović - 2012 - Journal of Symbolic Logic 77 (4):1245-1256.
    We prove that a Kueker theory with infinite dcl(Ø) does not have the strict order property and that strongly minimal types are dense: any non-algebraic formula is contained in a strongly minimal type.
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