• Media type: E-Article
  • Title: On the Type-Definability of the Binding Group in Simple Theories
  • Contributor: Hart, Bradd; Shami, Ziv
  • Published: Association for Symbolic Logic, Inc., 2005
  • Published in: The Journal of Symbolic Logic, 70 (2005) 2, Seite 379-388
  • Language: English
  • ISSN: 0022-4812
  • Origination:
  • Footnote:
  • Description: Let T be simple, work in Ceq over a boundedly closed set. Let p ∈ S(θ) be internal in a quasi-stably-embedded type-definable set Q (e.g., Q is definable or stably-embedded) and suppose (p, Q) is ACL-embedded in Q (see definitions below). Then Aut(p/Q) with its action on pC is type-definable in Ceq over θ. In particular, if p ∈ S(θ) is internal in a stably-embedded type-definable set Q, and pC υ Q is stably-embedded, then Aut(p/Q) is type-definable with its action on pC.