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Relation
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{{Wiktionary|relation}} {{broad-concept article}} '''Relation''' or '''relations''' may refer to: {{TOC right}} == General uses == * [[International relations]], the study of interconnection of politics, economics, and law on a global level * [[Interpersonal relationship]], association or acquaintance between two or more people * [[Public relations]], managing the spread of information to the public * Sexual relations, or [[human sexual activity]] * [[Social relation]], in social science, any social interaction between two or more individuals == Logic and philosophy == * [[Relation (philosophy)]], links between properties of an object * [[Relational theory]], framework to understand reality or a physical system == Mathematics == A [[finitary relation|finitary or ''n''-ary relation]] is a set of ''n''-tuples. Specific types of relations include: * [[Relation (mathematics)]] (an elementary treatment of binary relations) * [[Binary relation]] (or diadic relation – a more in-depth treatment of binary relations) * [[Equivalence relation]] * [[Homogeneous relation]] * [[Reflexive relation]] * [[Serial relation]] * [[Ternary relation]] (or triadic, 3-adic, 3-ary relation) Relation may also refer to: * [[Directed relation]] * [[Relation algebra]], an algebraic structure inspired by algebraic logic == Databases and ontology == * [[Relational model]], an approach to managing data ** [[Relation (database)]], a component of a relational database ** [[Relational algebra]] ** [[Relational calculus]] ** [[Relational database]], a digital database * Relationships (also known as relations), one of the [[ontology components#Relationships|ontology components]] == Art and literature == * ''[[Relation aller Fürnemmen und gedenckwürdigen Historien]]'', the first newspaper * [[Relation (film)|''Relation'' (film)]], a 1982 Japanese experimental short film by [[Toshio Matsumoto]] * [[Relations (album)|''Relations'' (album)]], a 2004 album of cover versions by Kathryn Williams == Linguistics == * [[Grammatical relation]], a functional relationship between [[Constituent (linguistics)|constituents]] in a [[clause]]. == See also == * [[Relate (disambiguation)]] * [[Relationism (disambiguation)]] * [[Relationship (disambiguation)]] ** [[Kinship]], in anthropology and generally, the web of human social relationships, or an affinity between entities because of some characteristics ** [[Coefficient of relationship]] in biology * [[Relative (disambiguation)]] * [[Relativism]] * [[Relativity (disambiguation)]] * {{In title|relation}} * {{In title|relations}} {{Disambiguation}}
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