Independence of strong partition relation for small cardinals, and the free-subset problem
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Abstract We prove the independence of a strong partition relation on ℵω, answering a question of Erdös and Hajnal. We then give an almost complete answer to the free subset problem.
[1] Keith Devlin. Some weak versions of large cardinal axioms , 1973 .
[2] Jeff B. Paris,et al. More on the free subset problem , 1973 .
[3] P. ERDŐS,et al. UNSOLVED AND SOLVED PROBLEMS IN SET THEORY , 1971 .