how many homomorphisms are there from Z[x]/<x^2+1> to R? to C? Z/2Z? Z/3Z? Z/5Z?
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Originally Posted by jin_nzzang how many homomorphisms are there from Z[x]/<x^2+1> to R? to C? Z/2Z? Z/3Z? Z/5Z? $\displaystyle \mathbb{Z}[x]/\langle x^2+1\rangle \leq \mathbb{C}$ as rings, so... Tonio
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