Question

6. The number of elements in a
set is called the
of
the set​

Answer 1

Answer:

The number of elements in a particular set is a property known as cardinality; informally, this is the size of a set. In the above examples, the cardinality of the set A is 4, while the cardinality of set B and set C are both 3.

Answer 2

Answer:

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The number of elements in a set is called the cardinal number, or cardinality, of the set. This is denoted as n(A), read “n of A” or “the number of elements in set A.” Page 9 Example. Find the cardinal number of each set. (a) The set A of counting numbers between ten and twenty.