<*mathematics*> A subset S of a partially ordered set P is an
antichain if,

for all x, y in S, x <= y => x = yI.e. no two different elements are related.

("<=" is written in LaTeX as \subseteq).

Last updated: 1995-02-03

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**Nearby terms:**
antenna gain « Anthony Hoare « anti-aliasing « **antichain** » antisymmetric » antivirus » antivirus program

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Copyright Denis Howe 1985