Note on a theorem of J. Folkman on transversals of infinite families with finitely many infinite members |
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Authors: | François Bry |
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Institution: | Université Pierre et Marie Curie, U.E.R. 48, 4, place Jussieu, 75230 Paris Cedex 05, France |
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Abstract: | In this note we show by a simple direct proof that Folkman's necessary and sufficient condition for an infinite family of sets with finitely many infinite members to have a transversal implies Woodall's condition. A short proof of Folkman's theorem results by combining with Woodall's proof. |
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