- #1
spacetimedude
- 88
- 1
This is going to be a really silly question, but here it goes.
In a ring theory lecture, I was given a definition to a polynomial ##P \in R[X]## evaluated at the element ##\lambda\in R##. I understand the evaluation bit as it is trivial to substitute a lambda into X.
At the end of the definition, it was shown that this process was essentially the mapping $$R[X] \rightarrow Maps(R,R).$$
From my understanding, ##Maps(R,R)## is in itself a linear mapping from R to R, so does ##R[X] \rightarrow Maps(R,R)## mean ##R[X]\rightarrow R\rightarrow R?##
Could someone clarify what ##R[X] \rightarrow Maps(R,R)## means?
Thanks in advance.
In a ring theory lecture, I was given a definition to a polynomial ##P \in R[X]## evaluated at the element ##\lambda\in R##. I understand the evaluation bit as it is trivial to substitute a lambda into X.
At the end of the definition, it was shown that this process was essentially the mapping $$R[X] \rightarrow Maps(R,R).$$
From my understanding, ##Maps(R,R)## is in itself a linear mapping from R to R, so does ##R[X] \rightarrow Maps(R,R)## mean ##R[X]\rightarrow R\rightarrow R?##
Could someone clarify what ##R[X] \rightarrow Maps(R,R)## means?
Thanks in advance.