pseudointersection

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English

Etymology

From pseudo- +‎ intersection.

Pronunciation

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Noun

pseudointersection (plural pseudointersections)

  1. (mathematics) A set for which the number of elements that are not in the intersection (of two infinite sets) is finite.
    • 2016, Jörg Brendle, Barnabás Farkas, Jonathan Verner, “Towers in filters, cardinal invariants, and Luzin type families”, in arXiv‎:
      We investigate which filters on can contain towers, that is, a modulo finite descending sequence without any pseudointersection (in ).
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