6. _____ refers to the number of elements in a given set.
7.the other way to describe a set by listing each element of the set inside the symbol{ } , which is called______ ______.
8.Set F is a ____ of the set M if every element of F is also an element of M.
9. if a set contains many elements, we offen use three dots (...) called an____.
10. or symbolizes that set is____ or empty.
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