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Does anyone have a good idea of how to go about proving this? | Does anyone have a good idea of how to go about proving this? | ||
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| + | I just used the fact that parity (even and oddness) is a homomorphism and respects products. | ||
--[[User:Jzage|Jzage]] 16:14, 18 February 2009 (UTC) | --[[User:Jzage|Jzage]] 16:14, 18 February 2009 (UTC) | ||
Revision as of 16:19, 18 February 2009
prove that A_3 inside S_3 is normal.
Does anyone have a good idea of how to go about proving this?
I just used the fact that parity (even and oddness) is a homomorphism and respects products.
--Jzage 16:14, 18 February 2009 (UTC)
