Coding into K by Reasonable Forcing

نویسنده

  • RALF-DIETER SCHINDLER
چکیده

We present a technique for coding sets “into K,” where K is the core model below a strong cardinal. Specifically, we show that if there is no inner model with a strong cardinal then any X ⊂ ω1 can be made ∆3 (in the codes) in a reasonable and stationary preserving set generic extension.

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تاریخ انتشار 2000