Abstract
In his classical monograph published in 1935, Dénes König [23] included one of Paul Erdős’s first remarkable results: an infinite version of the Menger theorem. This result (as well as the König-Hall theorem for bipartite graphs, and many related results covered in the book) can be reformulated as a statement about transversals of certain hypergraphs.
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Pach, J. (2013). A Remark on Transversal Numbers. In: Graham, R., Nešetřil, J., Butler, S. (eds) The Mathematics of Paul Erdős I. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-7258-2_34
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