Category:Definitions/Ordered Pairs

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This category contains definitions related to Ordered Pairs.
Related results can be found in Category:Ordered Pairs.

An ordered pair is a two-element set together with an ordering.

In other words, one of the elements is distinguished above the other - it comes first.

Such a structure is written:

$\tuple {a, b}$

and it means:

first $a$, then $b$.