hw20 - H a subgroup, and N a normal subgroup. Prove that if...

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Modern Algebra 1 Homework 9.1 Spring 2010 Due March 31 Exercise 1. Let G be a group. Prove that [ G : Z ( G )] is never prime. Exercise 2. Let G be a group,
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Unformatted text preview: H a subgroup, and N a normal subgroup. Prove that if G/N is abelian then H/ ( H N ) is abelian....
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