Abstract
We prove some theorems on uncountable abelian groups, and consistency results promised in the first part, and also that a variant of \( \diamondsuit _{\omega _1 } \) called ♣ (club), is consistent with 2ℵ 0<ℵ1.
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The author would like to thank the United States-Israel Binational Science Foundation for Grant 1110 and the NSF for Grant MCS-08479.
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Shelah, S. Whitehead groups may not be free even assuming ch, II. Israel J. Math. 35, 257–285 (1980). https://doi.org/10.1007/BF02760652
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DOI: https://doi.org/10.1007/BF02760652