1. A_________ is a well-defined collection of objects or things.
2. These objects or things separated by commas are called the________
3. Sets are described using the________ and the ________methods.
4. When the number of elements of two sets are equal, they are_________
5. When the two sets have exactly the same elements, they are__________
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5)Two sets are equal if they contain the same elements. Two sets are equivalent if they have the same cardinality or the same number of elements.