# Need of help

• September 25th 2013, 08:34 AM
soso123
Need of help
• September 25th 2013, 08:44 AM
Plato
Re: Need of help
Quote:

Originally Posted by soso123

• September 25th 2013, 08:47 AM
soso123
Re: Need of help
R is a ring with 1 and M is a left R-module.
• September 25th 2013, 09:06 AM
Plato
Re: Need of help
Quote:

Originally Posted by soso123
R is a ring with 1 and M is a left R-module.

Thank you for the reply. Defining all terms is a good habit to have.

What do you know about $s\cdot 0~?$