subest of cartesian product
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The 'Cartesian product' of these sets is denoted by A×B and consists of all ordered pairs (a, b) with a∈A and b∈B. Any subset R⊆A×B is called a 'binary relation' between A and B. The case A=B is of particular interest; in this situation R is called a 'relation' on A.
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The 'Cartesian product' of these sets is denoted by A×B and consists of all ordered pairs (a, b) with a∈A and b∈B. Any subset R⊆A×B is called a 'binary relation' between A and B. The case A=B is of particular interest; in this situation R is called a 'relation' on A.
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