Antichains, the stick principle, and a matching number
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DOI: 10.1016/j.topol.2019.01.013
Abstract: Abstract We investigate basic properties of three cardinal invariants involving ω 1 : stick, antichain number, and matching number. The antichain number is the least cardinal κ for which there does not exist a subcollection… read more here.
Keywords: antichains stick; number; matching number; stick principle ... See more keywords