---
date: 2022-01-23 20:54
modification date: Sunday 23rd January 2022 20:54:20
title: base change
aliases: ["base change", "extension of scalars", "restriction of scalars", "faithfully flat base change"]

---

Tags: 
#todo #todo/stub 
Refs:
?

# base change

![](attachments/Pasted%20image%2020220123205415.png)

![](attachments/Pasted%20image%2020220123205637.png)