Abstract
We show that if κ is λ <κ-ineffable (respectively, almost λ <κ-ineffable) then \( (NI_{\kappa ,\lambda }^{[\lambda ]^{ < \kappa } } |A)^ + \to ((NS_{\kappa ,\lambda }^{[\lambda ]^{ < \kappa } } )^ + )^2 \) (respectively, \( (NAI_{\kappa ,\lambda }^{[\lambda ]^{ < \kappa } } )^ + \to (I_{\kappa ,\lambda }^ + )^2 ) \) for some A, where \( NI_{\kappa ,\lambda }^{[\lambda ]^{ < \kappa } } \) (respectively, \( NAI_{\kappa ,\lambda }^{[\lambda ]^{ < \kappa } } \)) denotes the projection of the non-ineffable (respectively, non-almost ineffable) ideal on P κ(λ <κ), and \( NS_{\kappa ,\lambda }^{[\lambda ]^{ < \kappa } } \) the smallest strongly normal ideal on P κ(λ).
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© 2006 Birkhäuser Verlag Basel/Switzerland
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Matet, P. (2006). Part(κ, λ) and Part*(κ, λ). In: Bagaria, J., Todorcevic, S. (eds) Set Theory. Trends in Mathematics. Birkhäuser Basel. https://doi.org/10.1007/3-7643-7692-9_13
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DOI: https://doi.org/10.1007/3-7643-7692-9_13
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