equal sets with exactly the same elements and number of elements.equivalent sets with numbers of elements
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T, The set of integer geater than requal to negative five
Yes.
Two sets are equal if they both contain the same elements.
No, they are not equal sets.
Two sets are equivalent if they have the same cardinality. For finite sets this means that they must have the same number of distinct elements. For infinite sets, equal cardinality means that there must be a one-to-one mapping from one set to the other. This can lead to some counter-intuitive results. For example, the cardinality of the set of integers is the same as the cardinality of the set of even integers although the second set is a proper subset of the first. The relevant mapping is x -> 2x.