Mathlib v3 is deprecated. Go to Mathlib v4

Theorem ideal.le_comap_of_ramification_idx_ne_zero

Modification history

2022-08-04 14:20
src/number_theory/ramification_inertia.lean
feat(number_theory): [S/P^e : R/p] = e * [S/P : R/p], where e is ramification index (#15316) …
Added ideal.le_comap_of_ramification_idx_ne_zeroView on Github →