Group theory
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Please help with the following problems involving group theory proofs. Provide step by step calculations along with explanations.
a) Prove that if G is a finite group and a is an element of G then for some positive m , a^m is equal to the identity of G. (Use the Pigeon hole principle)
b) Prove that if G is a finite group, H subset of G that is closed with respect to the operation of G, Then every element of H has its inverse in H.
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Solution Summary
The following posting helps with a problem regarding group theory, and involves providing proofs. This provides examples of group theory proofs using pigeonhole principle and inverse elements. It helps prove that a group is a finite group based on the two types of proofing principles.
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Proof:
(a) Prove that if G is a finite group and a is an element of G then for some positive m , a^m is equal to the identity of G. (Use the Pigeon hole principle)
For any element a in G, since G is finite, we can assume |G| = n, ...
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