Math 22 1.2, 1.3
Math Stats
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Math 22 (1.2, 1.3) introduces sets, subsets, and cardinality, then builds to Cartesian products, relations, and functions, clarifying how elements combine, how ordered pairs define relationships, and what conditions make a relation a function.
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Two points are equal to each other if and only if their x-coordinates are the same and their y-coordinates are obviously the same.
—Math Stats
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