Theorem Ideal.finiteIndex'

Modification history

2026-10-27 14:08
Mathlib/RingTheory/Ideal/Quotient/HasFiniteQuotients/Basic.lean
refactor(RingTheory/Ideal/Norm/AbsNorm): state the absNorm finiteness lemmas for rings with finite quotients (#45255) …
Deleted Ideal.finiteIndex'View on Github →
2026-10-23 11:31
Mathlib/RingTheory/Ideal/Quotient/HasFiniteQuotients/Basic.lean
chore(RingTheory/Ideal/Norm): restate the `Ideal.absNorm` API for rings with finite quotients (#42790) …
Added Ideal.finiteIndex'View on Github →