Cardinal value
Definition
Cardinal value denotes the size or number of elements in a set. It is often used to compare the sizes of different sets.
5 Must Know Facts For Your Next Test
- Cardinal values can be finite or infinite.
- Two sets have the same cardinal value if there exists a one-to-one correspondence between them.
- The cardinality of an empty set is zero.
- For finite sets, the cardinal value is simply the count of distinct elements.
- The symbol |A| represents the cardinal value of set A.
Review Questions
- What does it mean if two sets have the same cardinal value?
- How do you denote the cardinal value of a set A?
- What is the cardinality of an empty set?
"Cardinal value" appears in:
Related terms
Set: A collection of distinct elements considered as an object.
Finite Set: A set with a countable number of elements.
Infinite Set: A set that has an uncountable number of elements.
