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Theorems · Theorem · commutative algebra

Ideal.finiteQuotientOfFreeOfNeBot

∀ {S : Type u_3} [inst : CommRing S] [IsDomain S] [Module.Free ℤ S] [Module.Finite ℤ S] (I : Ideal S),
  I ≠ ⊥ → Finite (S ⧸ I)

A nonzero ideal over a free finite extension of has a finite quotient. It can't be an instance because of the side condition I ≠ ⊥.

Defined in
Mathlib.LinearAlgebra.FreeModule.IdealQuotient
Cited by
3 results in Mathlib
Foundations
Depth 132 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CommRingIsDomainModule.FreeModule.Finite

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