Let $R$ be a commutative ring with identity and $Min(R)$ the set of all minimal prime ideals of $R$. When cinsidering $Min (R) $ as a subspace of $Spec(R)$ with respect to the zariski topolog, it is well-known that $Min(R)$ has a clopen basis and hence it is completely regular. It was written in an informal text, without any references, that this space is Normal. Why is this true?
Minimal prime ideal and normalness
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algebraic-geometry
commutative-algebra
zariski-topology