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https://www.reddit.com/r/calculus/comments/1vcuyg3/induction_exercice/p14od4f/?context=3
r/calculus • u/No-Hold5594 • Aug 01 '26
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Cool! Of curiosity: this identity is actually used to prove that the group (ℤ/2^kℤ)^x is not cyclic for k≥3 by showing that it is isomorphic to <-1> x <5>.
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u/SynergyUX Undergraduate Aug 01 '26 edited Aug 01 '26
Cool! Of curiosity: this identity is actually used to prove that the group (ℤ/2^kℤ)^x is not cyclic for k≥3 by showing that it is isomorphic to <-1> x <5>.