- Thread starter
- Moderator
- #1
- Jan 26, 2012
- 995
Here's this week's problem.
-----
Problem: Let $R$ be a commutative ring, and let $M$ and $N$ be two projective $R$-modules. Prove that $M\otimes_R N$ is a projective $R$-module.
-----
Remember to read the POTW submission guidelines to find out how to submit your answers!
-----
Problem: Let $R$ be a commutative ring, and let $M$ and $N$ be two projective $R$-modules. Prove that $M\otimes_R N$ is a projective $R$-module.
-----
Remember to read the POTW submission guidelines to find out how to submit your answers!