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- Dictionarycardinal number
noun
- 1. a number denoting quantity (one, two, three, etc.), as opposed to an ordinal number (first, second, third, etc.).
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- Cardinal number
Finite or infinite number that measures cardinality of sets
In mathematics, a cardinal number, or cardinal for short, is what is commonly called the number of elements of a set. In the case of a finite set, its cardinal number, or cardinality is therefore a natural number. For dealing with the case of infinite sets, the infinite cardinal numbers have been introduced, which are often denoted with the Hebrew letter ℵ {\displaystyle \aleph } (aleph) marked wi... Wikipedia
