Mathlib Map

Theorems · Theorem · commutative algebra

Ideal.height_le_height_add_spanFinrank_of_le

∀ {R : Type u_1} [inst : CommRing R] [IsNoetherianRing R] {I p : Ideal R} [p.IsPrime],
  I ≤ p → p.height ≤ (Ideal.map (Ideal.Quotient.mk I) p).height + ↑(Submodule.spanFinrank I)

If I ≤ p and p is prime, the height of p is bounded by the height of p ⧸ I R plus the span rank of I.

Defined in
Mathlib.RingTheory.Ideal.KrullsHeightTheorem
Cited by
2 results in Mathlib
Foundations
Depth 146 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CommRingIsNoetherianRingIdeal.IsPrime

Around this declaration

Dashed lines are statement dependencies; solid lines are citations in proofs.

Cites53

Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.

Cited by2

Results whose statement or proof uses this declaration.