Commutative algebra 22 Flatness, tensor products, localization
Channel: Richard E Borcherds
Date: 2020-08-23

This lecture is part of an online course on commutative algebra, following the book
"Commutative algebra with a view toward algebraic geometry" by David Eisenbud.

In this lecture we introduce flat modules, show that R[1/S] is flat, 
and show that vanishing, flatness, and exactness are all local properties. 

Reading: Section 2.2
Exercises: 2.20