I am a sophomore chem major taking my second semester of organic. I plan on going to grad school. I took calc 2 last semester but calc 3 is not offered next semester so that is sadly out of the question. I can't take classical mechanics without calc 3 and I've already taken prob. and stats. No higher level stats courses offered. I have considered taking discrete mathematics (which includes topics such as logic and proofs, set theory, relations, cardinal numbers, countable and uncountable sets, permutations and combinations, graph theory, and group theory) but I don't know how useful that would be in chemistry and if it would be worth all the effort. Any other course suggestions or ideas?