I had a similar experience in getting a Math BS after finishing an Econ BA (which, for my school, was notoriously short and was not seen as sufficient to prepare you for economics graduate work).
The deal with my Math dept head was I had to make it my primary major (no true doubles at my weird undergrad, had to have an "additional"). It was a deal I was happy to make if it meant skipping an intro-to-proofs course after having taken the masters level series in most the of the fields they offered!
The deal with my Math dept head was I had to make it my primary major (no true doubles at my weird undergrad, had to have an "additional"). It was a deal I was happy to make if it meant skipping an intro-to-proofs course after having taken the masters level series in most the of the fields they offered!