Theorem Ideal.mapCotangent_ker_of_surjective

Modification history

2026-04-08 17:43
Mathlib/RingTheory/Ideal/Cotangent.lean
feat(RingTheory/Extension): naive cotangent complex commutes with flat base change (#35593) …
Deleted Ideal.mapCotangent_ker_of_surjectiveView on Github →
2026-04-08 16:40
Mathlib/RingTheory/Ideal/Cotangent.lean
feat(RingTheory/Smooth): some lemmas about formally smooth (#35675) …
Added Ideal.mapCotangent_ker_of_surjectiveView on Github →