Disjoint Sets and Counting

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A disjoint pair of sets have no intersecting elements. This lesson explains why disjoint sets are useful for counting, and it explains how to count count the number of elements in pairs of sets, whether or not they are disjoint.

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Chapters: 0:00 Disjoint Sets 1:30 Overlapping Sets 2:18 Single Sets 4:12 Problem: Single Set Cardinality 5:52 Overlapping Cardinality 9:56 Problem: Multiple Set Cardinality 12:27 Summary 14:44 End Screen ... https://www.youtube.com/watch?v=Qd-ZnkUHuIw