Maximal Chains in {}^ωω and Ultrapowers of the Integers
classification
🧮 math.LO
keywords
omegachainsansweredchainconcerningconditionintegersmain
read the original abstract
Various questions posed by P. Nyikos concerning ultrafilters on $\omega$ and chains in the partial order $(\omega,<^*)$ are answered. The main tool is the oracle chain condition and variations of it.
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