The requirement for the minor in Mathematics is as follows:

Six 12-unit subjects in Course 18 (beyond the General Institute calculus requirement) of essentially different content, including at least four advanced subjects. An "advanced subject" is a subject whose first decimal digit is one or higher.

Essentially different content means that at most one subject from each of the following lists may be counted towards the minor:

• 18.06 or 18.700 (Linear Algebra)
• 18.702 or 18.703 (Algebra)
• 18.04 or 18.075 or 18.112 (Complex Variables)
• 18.05 or 18.440 (Probability)
• 18.441 or 18.443 (Statistics)
• 18.304 or 18.316 (Combinatorics)
• 18.400J or 18.404J (Computation)

Subjects offered jointly with another department (e.g., 18.400J/6.045J) count as subjects in Course 18. Other subjects outside Course 18 are not acceptable, even if they have strong mathematical content.

There is no separate minor in Course 18C. For general advice about mathematics subjects, see Choosing Subjects.