Cartesian product (of sets A and B)
The set of all possible ordered pairs (a,b), made by matching every element in the first set with every element in the second set, in which a symbol belong A and b symbol belong B.

For example, if A = (0,1) and B = (x,y,z), then the Cartesian product A×B = {(0,x),(0,y),(0,z),(1,x),(1,y),(1,z)}.

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