Theorem Algebra.Extension.Algebra.FormallySmooth.iff_comp_surjective

Modification history

2025-11-06 18:48
Mathlib/RingTheory/Smooth/Basic.lean
chore(RingTheory): redefine `FormallySmooth` in terms of `Ω[S⁄R]` and `H¹(L_{S/R})` (#30876) …
Added Algebra.Extension.Algebra.FormallySmooth.iff_comp_surjectiveView on Github →