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Lexikon


relation


1. A subset of the product of two sets, R : A x B. If (a, b) is an element of R then we write a R b, meaning a is related to b by R. A relation may be: reflexive (a R a), symmetric (a R b => b R a), transitive (a R b & b R c => a R c), antisymmetric (a R b & b R a => a = b) or total (a R b or b R a). See equivalence relation, partial ordering, pre-order, total ordering. 2. A table in a relational database. (1995-02-28)

In addition suitable contents:
[ 2 ] [ = ] [ al ] [ am ] [ an ] [ antisymmetric ] [ ar ] [ arc ] [ as ] [ at ] [ B ] [ b ] [ ba ] [ base ] [ be ] [ bs ] [ by ] [ ch ] [ data ] [ database ] [ de ] [ du ] [ ed ] [ ee ] [ element ] [ equivalence relation ] [ er ] [ et ] [ fi ] [ file ] [ h ] [ hr ] [ id ] [ il ] [ in ] [ io ] [ is ] [ it ] [ la ] [ Lex ] [ ma ] [ metric ] [ mm ] [ mo ] [ mod ] [ module ] [ na ] [ nc ] [ ng ] [ ni ] [ ns ] [ ordering ] [ pa ] [ partial ordering ] [ ph ] [ pr ] [ pre-order ] [ product ] [ query ] [ rc ] [ re ] [ reflexive ] [ relational database ] [ ro ] [ S ] [ se ] [ set ] [ si ] [ sit ] [ su ] [ sy ] [ symmetric ] [ table ] [ th ] [ to ] [ total ordering ] [ tr ] [ transitive ] [ tw ] [ va ] [ ve ] [ write ]






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