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A Noetherian affine scheme has finitely many generic points.

Lemma 10.31.6. If $R$ is a Noetherian ring then $\mathop{\mathrm{Spec}}(R)$ has finitely many irreducible components. In other words $R$ has finitely many minimal primes.

Proof. By Lemma 10.31.5 and Topology, Lemma 5.9.2 we see there are finitely many irreducible components. By Lemma 10.26.1 these correspond to minimal primes of $R$. $\square$

Comments (1)

Comment #1549 by Bhargav Bhatt on

Suggested slogan: A noetherian affine scheme has finitely many generic points.

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