Difference between revisions of "Cartesian product"

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The '''Cartesian product''' of 2 sets ''A'' and ''B'' is the set (usually denoted by ''A &times; B'') consists of all ordered pairs ''(a, b)'' where <math>a \in A</math> and <math>b \in B</math>.  The Cartesian product is named after [[René Descartes]] who invented this concept.
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The '''Cartesian product''' of 2 sets ''A'' and ''B'' is the set (usually denoted by ''A &times; B'') consisting of all ordered pairs ''(a, b)'' where <math>a \in A</math> and <math>b \in B</math>.  The Cartesian product is named after [[René Descartes]], who invented this concept.
  
 
[[category:set theory]]
 
[[category:set theory]]

Revision as of 19:31, October 18, 2007

The Cartesian product of 2 sets A and B is the set (usually denoted by A × B) consisting of all ordered pairs (a, b) where <math>a \in A</math> and <math>b \in B</math>. The Cartesian product is named after René Descartes, who invented this concept.