Talk:Ribbon Hopf algebra

The antipode is not included in the list of data for a ribbon Hopf algebra in this article. What is going on? Myrkkyhammas 00:13, 10 April 2007 (UTC)

And also it says nothing about the fact that the representations organize themselves into a tortile (or if one insists ribbon) category.... hence the name. This is (probably) the most important property. 219.117.195.84 (talk) 18:28, 13 March 2009 (UTC)