Filter (mathematics)/Definition: Revision history

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28 May 2009

  • curprev 08:5508:55, 28 May 2009‎ imported>Peter Schmitt‎ 148 bytes +148‎ avoid special case (neighbourhood)

27 November 2008

  • curprev 17:2217:22, 27 November 2008‎ imported>Richard Pinch‎ 149 bytes +149‎ A family of subsets of a given set which has properties generalising those of a neighbourhood system in topology.
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