Theorems · Theorem · commutative algebra
Ideal.radical_iInf_le
∀ {R : Type u} [inst : CommSemiring R] {ι : Sort u_2} (I : ι → Ideal R), (⨅ i, I i).radical ≤ ⨅ i, (I i).radicalThe reverse inclusion does not hold for e.g. I := fun n : ℕ ↦ Ideal.span {(2 ^ n : ℤ)}.
- Defined in
- Mathlib.RingTheory.Ideal.Operations
- Cited by
- 1 results in Mathlib
- Foundations
- Depth 79 from the axioms · uses propext, Classical.choice, Quot.sound
- Assumes
- CommSemiring
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites7
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- CommSemiringstatement and proof · cited by 10,911
- Idealstatement and proof · cited by 4,748
- iInfstatement · cited by 1,690
- Ideal.radicalstatement · cited by 121
- iInf_leproof · cited by 104
- le_iInfproof · cited by 102
- Ideal.radical_monoproof · cited by 10
Cited by1
Results whose statement or proof uses this declaration.
- Ideal.isRadical_iInfproof · cited by 1