Talk:Dual object
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Pivotal vs. autonomous[edit]
Pivotal and autonomous are not synonymous. A pivotal category, in addition to being (left or right) autonomous, has for each object a natural transformation X ---> X^**. —Preceding unsigned comment added by 137.111.90.68 (talk • contribs)
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A category in which every object has a left (resp. right) dual is called left (resp. right) rigid. Hence the two pages should be merged.
130.223.144.202 (talk) 14:25, 16 August 2011 (UTC)