Is it true that if a and b commute, then the order |ab| of ab is the least common multiple of the orders |a||b of the el
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Is it true that if a and b commute, then the order |ab| of ab is the least common multiple of the orders |a||b of the el
Is it true that if a and b commute, then the order |ab| of ab is the least common multiple of the orders |a||b of the elements a, b? If it is true, prove it. If not true, please provide counter example.
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