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Cardinality of a finite set | Sets | TG Grade 10 | Math | Khan Academy
Ever wondered what the ""size"" of a set actually means? This video introduces cardinality, the simple count of elements within a set, using clear notation. You'll explore the differences between finite sets you can count and infinite sets that go on forever, plus the unique case of the null set. https://www.khanacademy.org/math/class-10-tg ...
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