cardinality

The number of elements a given set contains.

The empty set has a cardinality of zero.

The cardinality of a set A is the least ordinal α such that there exists a bijection between A and α. We sometimes use the notation #92;alpha#61;#124;A#124; to indicate this.

The number of terms that can inhabit a type; the possible values of a type.

For many types, such as String, the set of possible values is unlimited. Such types have an infinite cardinality.

The property of a relationship between a database table and another one, specifying whether it is one-to-one, one-to-many, many-to-one, or many-to-many.

The status of being cardinalitial