Disputatio:Numerus octonus

There was an error, saying that the reason octonions are not a ring is that multiplication does not distribute over addition, while in fact it does. The reason why octonions do not form a ring is that multiplication is not associative, but alternative. Hence I changed the formulation. Strangely, the second paragraph was correct from the beginning, as it explained the correct matter, so I left it unchanged. 83.253.11.51 22:08, 8 Ianuarii 2012 (UTC)