My son completed the minimum major requirements within the first 2 years, not semesters. He also added in additional math electives, a math guided reading, math reading groups and seminars, math research which led to creating 2 new offered courses, 2 additional majors (physics & cs), and his required GenEds in his 4 years. He had advisor permission to take more than the recommended 4 courses a semester.
Year 1: Deduction with Calculus FYS, Linear Algebra, Multivariable Calculus, Discrete Mathematics Year 2: Intro to Real Analysis, Abstract Algebra, Differential Equations, Topics in Abstract Algebra, Graph Theory
Wesleyan offers a BA/MA program for certain STEM majors. The Masters year is tuition free for those accepted into the program. My son was able to complete his Masters work within his four years on campus, but by design he will not be officially awarded his Masters until the following commencement ceremony. BA/MA Program, Graduate Services - Wesleyan University