I'm a rising sophomore so I have plenty of time. Just want to plan it out so I know which classes to take when. The first year math for economists course covers constrained optimization so Kuhn-Tucker, envelope theorem, etc. The professor for that class said that real analysis will be sufficient as a prerequisite but after looking over the syllabus and material, a lot looks foreign. Would the proof based LA and Calc III be a good foundation to have before taking that course? Real Analysis is in the fall and because of timing I wouldn't be able to take it until fall of 2021.