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Elements of Descriptive Set Theory Spring 2013

In these notes we go through the very basic results from descriptive set theory. In our approach to the topic, the use of games is more explicit than what is usual in the literature. We do not assume any previous knowledge on set theory nor on first-order logic. For the history of the topic, see [Mo] (Borel* sets are due to D. Blackwell and Vaught codes are due to R. Vaught). For further reading [Ke] is recommended.