I'm sorry if this has been asked before, but it is a very simple question and I would imagine it shouldn't be terribly hard for someone that knows to answer.
I'm essentially trying to tell mathematica to not simplify
Exp[x] Exp[y] -> Exp[x+y]
I am using an add on package which is having a hard time with some replacement rules. So, the question is, is it possible to force mathematica to express
Exp[x] Exp[y] as is and not simplify it?
A secondary question, which should just be an extension of the first, I would like
(Exp[x] Exp[y] )^2 to be replaced as
Exp[x]^2 Exp[y]^2 not
Exp[2x+2y]! Or even being left as is is ok.