How would you prove that [itex] < x_1,x_2 ... | [ x_i , x_j ] =1, i,j \in N , x_1 ^ p = 1, x_{i+1} ^p = x_i , i \in N > [/itex] is presentation of [itex] Z_{p^ \infinity} [/itex](adsbygoogle = window.adsbygoogle || []).push({});

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# Presentetion of Prüfer group

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