When I read 'mathematician' I had two thoughts. One was something like "*gasp* No! Not the infernal black arts of MATH! BURN THE WITCH!!" The other was, "Clearly you're part mathematician. Only they can be half EVERYTHING."
I thought it was a nice touch, considering all the halves I threw in there.
... On another note, have you seen any Sues that were EXPLICITLY good at math, or just implied to be good at it since they're good at EVERYTHING?
I actually have! Some Sues like to throw it in as another way they're "not like other girls." Because GIRLS being GOOD at MATH?! GASP.
...It's a bit of a pet peeve of mine.