Ordered pair
PAIR OF MATHEMATICAL OBJECTS; TUPLE OF SPECIFIC LENGTH (TUPLE LENGTH N=2)
Ordered pairs; Pair (mathematics); Pair (ordered); Ordered couple; Kuratowski pair; Kuratowski ordered pair; (a, b)
In mathematics, an ordered pair (a, b) is a pair of objects. The order in which the objects appear in the pair is significant: the ordered pair (a, b) is different from the ordered pair (b, a) unless a = b.