<p>Logic, proofs, naive set theory, discrete probability, basic counting, basic graph theory, perhaps introductory language and automata theory.</p>
<p>Depending on the course and material covered, this could range in difficulty from “not bad” to “what’s the course drop deadline again!?!”</p>
<p>If you’re typically pretty strong in math and programming, I’d say go for it. Taking it online probably isn’t a huge disadvantage.</p>