Maximal Element (original) (raw)
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Let be a partially ordered set. Then an element
is said to be maximal if, for all
,
. Alternatively, an element
is maximal such that if
for any
, then
.
Note that the definition for a maximal element above is true for any two elements of a partially ordered set that are comparable. However, it may be the case that two elements of a given partial ordering are not comparable.
See also
Comparable Elements, Maximal Set
This entry contributed by Jay S. Nakahara
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References
Jech, T. Set Theory. Berlin: Springer-Verlag, 2003.
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Nakahara, Jay S. "Maximal Element." From MathWorld--A Wolfram Web Resource, created by Eric W. Weisstein. https://mathworld.wolfram.com/MaximalElement.html