cardinality

English

Wikipedia

Etymology

cardinal +‎ -ity

Noun

cardinality (plural cardinalities)

1. (set theory) Of a set, the number of elements it contains.

   The empty set has a cardinality of zero.

2. (data modeling) 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.

Synonyms

• (in set theory): power

Related terms

• cardinal

Translations

in set theory

Czech: mohutnost (cs) f., kardinalita (cs) f. Dutch: kardinaliteit (nl) f. Finnish: mahtavuus (fi) French: cardinalité (fr) f. German: Mächtigkeit f., Kardinalität f. Icelandic: fjöldatala Italian: cardinalità (it) f., numerosità (it) f., potenza (it) f.

Japanese: 濃度 (ja) (のうど, nōdo) Norwegian: kardinalitet Polish: liczebność (pl) f. Portuguese: cardinalidade (pt) f. Romanian: cardinalitate (ro) f., mărime (ro) f. (potențială) Spanish: cardinalidad

See also

• aleph
• cardinal number
• multiplicity