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Strictly Between


Let P=(P,<=) be a partially ordered set, and let x,y,z in P. If x<=y<=z, then y is said to be between x and z. If y is between x and z and y not in {x,z}, then y is strictly between x and z.


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Between

This entry contributed by Matt Insall (author's link)

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Cite this as:

Insall, Matt. "Strictly Between." From MathWorld--A Wolfram Web Resource, created by Eric W. Weisstein. https://mathworld.wolfram.com/StrictlyBetween.html

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