Abstract
We investigate the compatibility of \(I_0\) with various combinatorial principles at \(\lambda ^+\), which include the existence of \(\lambda ^+\)-Aronszajn trees, square principles at \(\lambda \), the existence of good scales at \(\lambda \), stationary reflections for subsets of \(\lambda ^{+}\), diamond principles at \(\lambda \) and the singular cardinal hypothesis at \(\lambda \). We also discuss whether these principles can hold in \(L(V_{\lambda +1})\).
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Shi, X., Trang, N. \(I_0\) and combinatorics at \(\lambda ^+\) . Arch. Math. Logic 56, 131–154 (2017). https://doi.org/10.1007/s00153-016-0518-3
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DOI: https://doi.org/10.1007/s00153-016-0518-3
Keywords
- Axiom \(I_0\)
- \(\lambda ^+\)-Aronszajn tree
- Square
- Weak square
- Stationary reflection
- Good scales
- Diamond
- \(\lambda \)-Continuum hypothsis
- Generic absoluteness
- \(\lambda \)-Goodness