Hi!
I have problems with this demostration (I do not know how to start)
If , prove that where
Thanks
Ok
- Definition
An ideal in a commutative ring is a subset of such that
If , then
- Definition
If lie in a commutative ring , then the set of all linear combinations, denoted by
is an ideal in , called the ideal generated by . In particular if , then
consists of all the mulpiples of ; it is called the principal generated by