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Simultaneous reflection and impossible ideals. (English) Zbl 1270.03068
Summary: We prove that if $$\mu^+\rightarrow[\mu^+]^2_{\mu^+}$$ holds for a singular cardinal $$\mu$$, then any collection of fewer than cf$$(\mu)$$ stationary subsets of $$\mu^+$$ must reflect simultaneously.

##### MSC:
 300 Partition relations
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##### References:
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