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![[parent]](http://images.planetmath.org:8080/images/uparrow.png) Viewing Correction to 'alternating group is a normal subgroup of the symmetric group'
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Split entry? by rm50
Correction id: 12600
Filed on: 2007-06-23 12:25:15
Status: Accepted on 2007-08-04 12:45:00
Type: Addendum
Correction text:
| While the theorem states only that An is normal in Sn, you actually prove it has index 2. You might want to move that outside the proof in a comment, or even in a second theorem, just to make it clear to the reader what is going on. |
No comment from object owner CWoo.
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