|WikiProject Mathematics||(Rated Stub-class, Low-importance)|
Pivotal vs. autonomous
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 126.96.36.199 (talk • contribs)
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.