View source for Codual

==English==

===Etymology===
From {{prefix|en|co|dual}}.

===Adjective===
{{en-adj|-}}

# {{lb|en|mathematics|of a [[relation]]}} complement dual.
#: ''For a relation <math>P \subseteq A^2</math>, the codual relation is defined as <math>P^\mathit{cd} = \left\{ (x, y) \in A^2 \mid (y, x) \not\in P \right\}</math>.''

====Related terms====
* {{l|en|coduality}}

====Translations====
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* German: {{t|de|codual}}
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