# Category:Ordered Pairs

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This category contains results about Ordered Pairs.

Definitions specific to this category can be found in Definitions/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 $b$**.

## Pages in category "Ordered Pairs"

The following 3 pages are in this category, out of 3 total.