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Definability and Definable Groups in Simple Theories
The Journal of Symbolic Logic
Vol. 63, No. 3 (Sep., 1998), pp. 788-796
Published by: Association for Symbolic Logic
Stable URL: http://www.jstor.org/stable/2586712
Page Count: 9
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We continue the study of simple theories begun in  and . We first find the right analogue of definability of types. We then develop the theory of generic types and stabilizers for groups definable in simple theories. The general ideology is that the role of formulas (or definability) in stable theories is replaced by partial types (or ∞-definability) in simple theories.
The Journal of Symbolic Logic © 1998 Association for Symbolic Logic