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https://doi.org/10.1007/s000120050136
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Cite Journal: Algebra Universalis |  Publication Date: Nov 1, 1999 |
 Citations: 1 |
In response to a question of Ploscica and Haviar, a chain L is constructed such that $L^3$ has an antichain of infinite cardinality $\kappa$ while $L^2$ does not. The construction applies to any singular $\kappa$ . (Independently, such chains have been constructed for certain regular $\kappa$ by Goldstern and Shelah.)
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