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Theorems · Definition · algebraic geometry

PrimeSpectrum.preimageOrderIsoFiber

(R : Type u_1) →
  (S : Type u_2) →
    [inst : CommRing R] →
      [inst_1 : CommRing S] →
        [inst_2 : Algebra R S] →
          (p : PrimeSpectrum R) → ↑(PrimeSpectrum.comap (algebraMap R S) ⁻¹' {p}) ≃o PrimeSpectrum (p.asIdeal.Fiber S)

The OrderIso between the fiber of PrimeSpectrum S → PrimeSpectrum R at a prime ideal p : PrimeSpectrum R and the prime spectrum of κ(p) ⊗[R] S.

Defined in
Mathlib.RingTheory.LocalRing.ResidueField.Fiber
Cited by
3 results in Mathlib
Foundations
Depth 107 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CommRingCommRingAlgebra

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