The number of elements or members in a set is the cardinal number of that set. If A is a finite set and it has elements equal to N. Then the cardinal number of set A is N. Note: The cardinal number of an empty set is always zero. For example, set A = {1, 3, 6, 9, 10, 12, 18}, the cardinal number of set A is 7.
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Answer:
The number of elements or members in a set is the cardinal number of that set. If A is a finite set and it has elements equal to N. Then the cardinal number of set A is N. Note: The cardinal number of an empty set is always zero. For example, set A = {1, 3, 6, 9, 10, 12, 18}, the cardinal number of set A is 7.
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