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Approachability and Games on Posets
Published online by Cambridge University Press: 12 March 2014
Abstract
We show that for any infinite cardinal κ, every strongly (κ + 1 )-strategically closed poset is strongly κ+-strategically closed if and only if APκ (the approachability property) holds, answering the question asked in [5]. We also give a complete classification of strengths of strategic closure properties and that of strong strategic closure properties respectively.
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- Copyright © The International Society for Twin Studies 1963
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