This article is within the scope of WikiProject Mathematics, a collaborative effort to improve the coverage of mathematics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MathematicsWikipedia:WikiProject MathematicsTemplate:WikiProject Mathematicsmathematics articles
It's not clear to me why the article describes the Whitehead argument. If anything, Rubinstein's proof is the most interesting and avoids the tower of covering spaces altogether. It's also equivariant. Rybu (talk) 00:24, 28 November 2014 (UTC)[reply]