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  1. Two Upper Bounds on Consistency Strength of $negsquare{aleph_{omega}}$ and Stationary Set Reflection at Two Successive $aleph{n}$.Martin Zeman - 2017 - Notre Dame Journal of Formal Logic 58 (3):409-432.
    We give modest upper bounds for consistency strengths for two well-studied combinatorial principles. These bounds range at the level of subcompact cardinals, which is significantly below a κ+-supercompact cardinal. All previously known upper bounds on these principles ranged at the level of some degree of supercompactness. We show that by using any of the standard modified Prikry forcings it is possible to turn a measurable subcompact cardinal into ℵω and make the principle □ℵω,<ω fail in the generic extension. We also (...)
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