Abstract
Let a and b be sets. Then the set {{a}, {a,b}} is denoted by (a,b) and is called the ordered pair with first coordinate a and second coordinate b. Let A and B be classes; then the Cartesian product of A and B is the class
i.e. A × B is the class of all ordered pairs with first coordinate in A and second coordinate in B.
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© 1998 Springer Science+Business Media New York
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Adamson, I.T. (1998). Relations. In: A Set Theory Workbook. Birkhäuser, Boston, MA. https://doi.org/10.1007/978-0-8176-8138-8_3
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DOI: https://doi.org/10.1007/978-0-8176-8138-8_3
Publisher Name: Birkhäuser, Boston, MA
Print ISBN: 978-0-8176-4028-6
Online ISBN: 978-0-8176-8138-8
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