partially ordered set

noun, Mathematics.

a set in which a relation as “less than or equal to” holds for some pairs of elements of the set, but not for all.

Compare totally ordered set, well-ordered set.

Origin of partially ordered set

1970-1975

First recorded in 1970-75

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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