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What are the 2 kinds of sets? How many type of sets are there? What is the two sets that contain the same elements? What is the symbol of null set? Is an empty set an element of an empty set? What is the cardinality of K?
What do you mean by cardinality of set? Is Empty Set counted in cardinality? Why is cardinality important? How do you prove two infinite sets have the same cardinality? What if the cardinality is infinite set? Can an infinite set be countable? What is the cardinality of the real numbers?
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