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Posted: **Mon May 09, 2022 10:48 am**

: 12 Let G Be An Arbitrary Abelian Group Let H Be The Set Of All Elements Of G That Are Equal To Their Own Inverses H 1 (28.88 KiB) Viewed 30 times

12. Let G be an arbitrary abelian group. Let H be the set of all elements of G that are equal to their own inverses: H = {x E G | x = x x-1}. Prove that H is a subgroup of G.