Pullback -- pullback in the category of rings
Description
Pullback is a package that implements pullback for diagrams of rings
Caveat
Works only for maps of rings finitely generated over a base field and one of the two maps is surjective
Authors
Drew Ellingson
Karl Schwede
Version
This documentation describes version 1.03 of Pullback.
Source code
The source code from which this documentation is derived is in the file
Pullback.m2.