Relation may refer to:

• Relation, a person to whom one is related, i. e. a family member (see also Kinship)
• Relation (mathematics), a generalization of arithmetic relations, such as "=" and "<", that occur in statements, such as "5 < 6" and "2 + 2 = 4". Kinship is a relationship between any entities that share a genealogical origin through either biological cultural or historical descent This article sets out the set-theoretic notion of relation For a more elementary point of view see Binary relations and Triadic relations See also binary relation, triadic relation, relational algebra, theory of relations. In Mathematics, a binary relation (or a dyadic or 2-place relation) is an arbitrary association of elements within a set or with elements of In Logic and Mathematics, a triadic relation or a ternary relation is an important special case of a polyadic or finitary relation, one in which Relational algebra, an offshoot of First-order logic (and of Algebra of sets) deals with a set of relations closed under Operators This article develops the theory of relations in regard to its specifically combinatorial aspects
• In the relational model of databases, a set of tuples (also called rows), otherwise known as a table. The relational model for Database management is a Database model based on first-order predicate logic, first formulated and proposed in 1969 by Edgar In Mathematics, a tuple is a Sequence (also known as an "ordered list" of values called the components of the tuple
• Relation, in logic and philosophy, a property or predicate ranging over more than one argument. See also Logic of relatives, Relation of ideas, Relational theory, Relational philosophy. Charles Sanders Peirce (pronounced purse) (September 10 1839 &ndash April 19 1914 was an American Logician mathematician, philosopher A Relation of Ideas, in the Humean sense is the type of knowledge that can be characterized as arising out of pure conceptual thought and logical operations (in contrast to … This article is about relational theory in physics and philosophy

See also

• International relations
• Interpersonal relationship
• Intimate relationship

An interpersonal relationship is a relatively long-term association between two or more people An intimate relationship is a particularly close Interpersonal relationship.

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