Not too easy. Not too difficult.
Gallagher teaches his entire course using proofs. I made the mistake of skipping several classes: don't! In the end, it all makes enough sense that a 25% on a midterm equates to a C-. When in doubt, differentiate!
Differentiate everything and get hip to the lingo.
Hours per week:
Advice for students:
Create a study group or attend sessions with the TA.