Theorems · Definition · commutative algebra

Algebra.Extension.Cotangent

{R : Type u} →
  {S : Type v} → [inst : CommRing R] → [inst_1 : CommRing S] → [inst_2 : Algebra R S] → Algebra.Extension R S → Type w

The cotangent space of an extension. This is a type synonym so that P.Ring can act on it through the action of S without creating a diamond.

Defined in

Mathlib.RingTheory.Extension.Basic

Cited by

121 results in Mathlib

Foundations

Depth 70 from the axioms, rests on 1,115 definitions · uses propext, Classical.choice, Quot.sound

Assumes

CommRingCommRingAlgebra