# Groups : Symmetry

Note: G' means derived (commutator) subgroup of G and Sn is symmetric group of degree n

Please find G' in each case

(a) G is abelian

(b) G = Sn

https://brainmass.com/math/group-theory/groups-symmetry-15975

#### Solution Summary

A proof involving symmetric groups is offered. The proof is concise.

$2.19