Commit 2025-06-02 10:27 9c388d14
View on Github →feat(CommAlgCat): the category of commutative algebras (#23601)
Define the category of commutative R
-algebras. This is the same as Under R
up to two details:
A : CommAlg R
contains the data of bothalgebraMap R A : R → A
andAlgebra.smul : R → A → A
.A : Under R
only containsalgebraMap R A
, meaning that going back and forth betweenUnder R
and unbundled algebras is painful/nigh impossible.- If
A : Under R
, thenA
must live in the same universe asR
From Toric, FLT Closes #19299