Let and be any sets. Then the product of and is defined as the Cartesian product
(Ciesielski 1997, p. 68; Dauben 1990, p. 173; Moore 1982, p. 37; Rubin 1967, p. 274; Suppes 1972, pp. 114-115).
Let and be any sets. Then the product of and is defined as the Cartesian product
(Ciesielski 1997, p. 68; Dauben 1990, p. 173; Moore 1982, p. 37; Rubin 1967, p. 274; Suppes 1972, pp. 114-115).
Weisstein, Eric W. "Cardinal Multiplication." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/CardinalMultiplication.html