Hey there, I'm trying to prove a set of permutations is a group, but the textbook isn't very clear how to do so. G={id, (1 2), (1 3), (1 4)}; operation in S_4 If anyone can offer any words of advice, that would be much appreciated.
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Originally Posted by manygrams Hey there, I'm trying to prove a set of permutations is a group, but the textbook isn't very clear how to do so. G={id, (1 2), (1 3), (1 4)}; operation in S_4 If anyone can offer any words of advice, that would be much appreciated. the product of and is . this does not lie in .Hence is not closed under multiplication. How can be a group?
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