Is there a command to display evaluation rules for user defined expressions?
If one defines a function f[x_]:=x^2, one gets information about the function by typing ?f. I want to do a similar thing for derivatives of functions. For example, I define g'[x_]:=x^2. How do I get information about the expression g'? I'm aware of the fact that typing g'[x] will give me x^2, and the fact that one can use ValueQ to determine whether or not the pattern g' will be transformed. However, I don't know how to list the values of user defined expressions. I'm using version 3.0.