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 (de) f, Kardinalität (de) f
• Icelandic: fjöldatala (is)
• Italian: cardinalità (it) f, numerosità (it) f, potenza (it) f

• Japanese: 濃度 (ja) (のうど, nōdo)
• Norwegian: kardinalitet (no)
• Polish: liczebność (pl) f
• Portuguese: cardinalidade (pt) f
• Romanian: cardinalitate (ro) f, mărime (ro) f (potențială)
• Spanish: cardinalidad (es)

See also

• aleph
• cardinal number
• multiplicity