Cardinal number
FINITE OR INFINITE NUMBER THAT MEASURES CARDINALITY (SIZE) OF SETS
Cardinal numbers; Cardinal arithmetic; Cardinal Number; Cardinal addition; Cardinal multiplication; Cardinal exponentiation; Cardinal (mathematics); Cardinal scale; Cardinal sum; Aleph exponentiation
In mathematics, cardinal numbers, or cardinals for short, are a generalization of the natural numbers used to measure the cardinality (size) of sets. The cardinality of a finite set is a natural number: the number of elements in the set.