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What are the numbers that describe a set of data called?
It could be the cardinality of the set.
What is the meaning of cardinality of a set?
even numbers less that 10
Is there more rational numbers than irrational numbers?
No, the set of irrationals has a greater cardinality.
What is the cardinality of an odd whole number?
The set of odd whole numbers is countably infinite. It's cardinality is aleph null.
Why infinity is a largest natural number?
Actually, infinity is not a natural number. It is simply a concept of having no upper bound. However, it is possible to have and compare different infinities. For example, we use aleph_0 to represent the cardinality (size) of the set of natural numbers. The cardinality of the set of integers, rational numbers, gaussian integers all have the same cardinality of aleph_0. The set of real numbers has cardinality aleph_1, which is greater than aleph_0. It is possible to create a sequence of increasing infinities (aleph_2, aleph_3, ...), which are called transfinite numbers.
