Terrible. This is supposed to be an introduction to proofs class… he jumps in as if we know proofs on the first day. Ridiculously hard grader. This class is supposed to be a pretty easy math class, but he did not make it easy. Came to OH many times, but often left more confused than I arrived. Homework due every Friday… took me over 6 hours easily every week. Absolute terrible experience, would not recommend to anyone.