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1. • CommentRowNumber1.
   • CommentAuthorDavidRoberts
   • CommentTimeNov 12th 2012
   • PermaLink
   Author: DavidRoberts
   Format: MarkdownItex<http://en.wikipedia.org/wiki/Wheel_theory> This was [pointed out](http://mathoverflow.net/questions/112104/will-there-ever-be-a-way-to-define-division-by-zero-similar-to-how-we-defined-ro) by quid on MO, and details what some people may find interesting from the viewpoint of constructive algebra (as in, it might be interesting to give a constructive approach to wheels). I'd never heard of this before, but that probably shouldn't be surprising. At worst, something for a moment's entertainment. It may go on the nLab, it may not, depending on how interested I feel about it :-)

   http://en.wikipedia.org/wiki/Wheel_theory

   This was pointed out by quid on MO, and details what some people may find interesting from the viewpoint of constructive algebra (as in, it might be interesting to give a constructive approach to wheels). I’d never heard of this before, but that probably shouldn’t be surprising.

   At worst, something for a moment’s entertainment. It may go on the nLab, it may not, depending on how interested I feel about it :-)

2. • CommentRowNumber2.
   • CommentAuthorTobyBartels
   • CommentTimeNov 13th 2012
   • PermaLink
   Author: TobyBartels
   Format: MarkdownItexI have been meaning to write a page on these but have never gotten around to it.

   I have been meaning to write a page on these but have never gotten around to it.

3. • CommentRowNumber3.
   • CommentAuthorTobyBartels
   • CommentTimeAug 25th 2021
   • PermaLink
   Author: TobyBartels
   Format: MarkdownItexIt exists now: [[wheel]]

   It exists now: wheel

4. • CommentRowNumber4.
   • CommentAuthorDavidRoberts
   • CommentTimeAug 25th 2021
   • PermaLink
   Author: DavidRoberts
   Format: MarkdownItexWow, I had forgotten about raising this! Thanks for following up, Toby.

   Wow, I had forgotten about raising this! Thanks for following up, Toby.