every homomorphic image of a cyclic group is cyclic
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Step-by-step explanation:
Our aim is to prove that every homomorphic image of a cyclic group is cyclic.
Lets consider f: G → H to be an homomorfism.
Now, suppose that G is generated by <g>.
Hence, if h is in the range of f, thus, we can say that there exists one element in G which satisfies f(a) = h.
We know that a is an element of G, hence it exists an n natural number such that a = g^n.
From this we can see that h = f(a) = f(g^n) = f(g)^n .
Hence, we can express any image of a cyclic group as a power of the image of a generator of the cyclic group.
Then we conclude that every homomorphic image of a cyclic group is cyclic.
I hope this helps you!! Keep up the good studies!!
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