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1. • CommentRowNumber1.
   • CommentAuthorUrs
   • CommentTimeMar 23rd 2010
   • PermaLink
   Author: Urs
   Format: MarkdownI treid to clean up [[Whitehead tower]] a bit: I rewrote and expanded the Idea/Definition part. Then I _moved_ David Roberts' material that was there to the appropriate section at the new [[Whitehead tower in an (infinity,1)-topos]]. (There I tried to add some introductory remarks to it but will try to further highlight David's results here in a moment). At [[Whitehead tower]] I left just a new section that says that there is a notion of Whitehead towers in more general contexts with a pointer to [[Whitehead tower in an (infinity,1)-topos]]

   I treid to clean up Whitehead tower a bit:

   I rewrote and expanded the Idea/Definition part.

   Then I moved David Roberts' material that was there to the appropriate section at the new Whitehead tower in an (infinity,1)-topos. (There I tried to add some introductory remarks to it but will try to further highlight David's results here in a moment).

   At Whitehead tower I left just a new section that says that there is a notion of Whitehead towers in more general contexts with a pointer to Whitehead tower in an (infinity,1)-topos

2. • CommentRowNumber2.
   • CommentAuthorUrs
   • CommentTimeMay 21st 2012
   • (edited May 21st 2012)
   • PermaLink
   Author: Urs
   Format: MarkdownItexI have added at _[[Whitehead tower]]_ in the Examples-section _[Whitehead tower of the orthogonal group](http://ncatlab.org/nlab/show/Whitehead+tower#OfTheOrthogonalGroup)_ a big diagram giving more details on the statement that was indicated there earlier: horizontally running the Postnikov tower, vertically the Whitehead tower, and diagonally the homotopy groups.

   I have added at Whitehead tower in the Examples-section Whitehead tower of the orthogonal group a big diagram giving more details on the statement that was indicated there earlier: horizontally running the Postnikov tower, vertically the Whitehead tower, and diagonally the homotopy groups.