Invariant types in dp-minimal theories
Invariant types in dp-minimal theories
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dp 极小理论中的不变类型
DOI:
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发表时间:
2012
期刊:
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通讯作者:
Pierre Simon
中科院分区:
文献类型:
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作者:
Pierre Simon
We try to analyse general invariant types in dp-minimal theories in terms of finitely satisfiable and definable ones. We prove in particular that an invariant dp-minimal type is either finitely satisfiable or definable and that a definable version of the (p,q)-theorem holds in dp-minimal theories of small or medium directionality. In an appendix with Sergei Starchenko, we prove that in dp-minimal theories with Skolem functions, every non-forking formula extends to a definable type.