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arXiv · 1307.3731

Chang's Conjecture, The Weak Reflection Principle and the Tree Property at $\omega_2$

Victor Torres-Perez·Liuzhen Wu
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Abstract

We prove that a strong version of Chang's Conjecture, equivalent to the Weak Reflection Principle at $\omega_2$, together with $2^\omega=\omega_2$, imply there are no $\omega_2$-Aronszajn trees.

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Victor Torres-Perez, Liuzhen Wu. 2013-07-14. Chang's Conjecture, The Weak Reflection Principle and the Tree Property at $\omega_2$. https://doi.org/10.1016/j.topol.2015.05.061

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