Fixpoint Alternation and the Game Quantifier
Fixpoint Alternation and the Game Quantifier
复制标题
定点交替和博弈量词
DOI:
--
复制
发表时间:
1999
期刊:
影响因子:
--
通讯作者:
Julian Bradfield
中科院分区:
文献类型:
--
作者:
Julian Bradfield
Drawing on an analogy with temporal fixpoint logic, we relate the arithmetic fixpoint definable sets to the winning positions of certain games, namely games whose winning conditions lie in the difference hierarchy over Σ20. This both provides a simple characterization of the fixpoint hierarchy, and refines existing results on the power of the game quantifier in descriptive set theory.