Explicit example of collapsing kappa^+ in iteration of kappa-proper forcings
classification
🧮 math.LO
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kappacollapsingexampleforcingiterationappendixcompleteconstruction
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We give an example of iteration of length omega of (<kappa)-complete kappa^+-cc forcing notions with the limit collapsing kappa^+. The construction is decoded from the proof of Shelah [Proper and Improper Forcing, Appendix, Theorem 3.6(1)].
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