unit 3. outline: sets and subsets set operations the laws of set theory counting and venn diagrams....
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DESCRIPTION
3.1 Sets and Subsets A well-defined collection of objects (elements or members) e.g., set of even numbers Terminologies: finite sets, infinite sets, cardinality of a set, subset Representing a set A={1,3,5,7,9} B={x|x is odd} C={1,3,5,7,9,...} cardinality of A=5 (|A|=5)