Id just like to mention that you are basically begging the question by using the term compsci in the first place. CompSci is more or less defined as being the mathematics of computing so by that it would seem you have your answer.
There's also the issue that we're talking about CS degrees - not CS in the abstract. There's an enormous variation in subject matter in CS degrees - from the ones that are just a sideline of a pure maths department (and would prefer that those messy lumps of silicon didn't get in the way of all the nice theory), to those that are almost vocational training (and think big-O notation is a bit highfaluting).
An analagy with automobiles that has been made elsewhere feels apropriate to this thread
I can feel my pathological hatred of software development analogy/metaphor coming on :-)