Author: J-B Vienney Format: MarkdownItexAdded a common error about identity natural transformations which leaded to the redundant definition of permutative categories present in most papers.
<a href="https://ncatlab.org/nlab/revision/diff/identity+natural+transformation/6">diff</a>, <a href="https://ncatlab.org/nlab/revision/identity+natural+transformation/6">v6</a>, <a href="https://ncatlab.org/nlab/show/identity+natural+transformation">current</a>
Added a common error about identity natural transformations which leaded to the redundant definition of permutative categories present in most papers.