Could anyone give an example of an additive category which is not abelian?

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- May 20th 2009, 12:42 PMVeveexample of a category
Could anyone give an example of an additive category which is not abelian?

- May 20th 2009, 02:06 PMpickslides
- May 20th 2009, 02:58 PMVeve
Thank you.

- May 21st 2009, 01:48 AMNonCommAlg