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Text File  |  1992-11-08  |  862 b   |  25 lines
  1. Newsgroups: sci.math.research
  2. Path: sparky!uunet!charon.amdahl.com!pacbell.com!decwrl!elroy.jpl.nasa.gov!sdd.hp.com!ux1.cso.uiuc.edu!news.cso.uiuc.edu!usenet
  3. From: Allan Adler <ara@zurich.ai.mit.edu>
  4. Subject: deriving the octahedral axiom
  5. Message-ID: <ARA.92Nov8020412@camelot.ai.mit.edu>
  6. Sender: Daniel Grayson <dan@math.uiuc.edu>
  7. X-Submissions-To: sci-math-research@uiuc.edu
  8. Organization: M.I.T. Artificial Intelligence Lab.
  9. X-Administrivia-To: sci-math-research-request@uiuc.edu
  10. Approved: Daniel Grayson <dan@math.uiuc.edu>
  11. Date: Sun, 8 Nov 1992 07:04:12 GMT
  12. Lines: 11
  13.  
  14.  
  15. I'm looking at the definition of a triangulated category and I find
  16. the octahedral axiom rather puzzling.
  17.  
  18. Let's say one is just sitting down to invent triangulated categories.
  19. How does one discover that one wants to write down the octahedral axiom?
  20.  
  21. Allan Adler
  22. ara@altdorf.ai.mit.edu
  23.  
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