Cartesian product
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In mathematics, the Cartesian product of two sets X and Y is the set of ordered pairs from X and Y.
References
- Paul Halmos (1960 pages=24). Naive set theory. Van Nostrand Reinhold.
- Keith J. Devlin (1979). Fundamentals of Contemporary Set Theory. Springer-Verlag, 12. ISBN 0-387-90441-7.