...I have been employed in the biomedical, audio engineering, and electronics industries. I volunteer at Free Geek, and Bikes for Humanity; two great organizations in Portland, OR that empower people, and help the planet.My hobbies are sound recording and mixing, competitive cycling, and nordic skate skiing. Former Adult Student Leslie A. (read more)
...Since x = y, ? (xRy ? yRx), x = y. Thus, by definition of antisymmetric, R on A is antisymmetric. Therefore, if R n R-1 ? {(a, a): a ? A}, R on A is antisymmetric. (read more)
...I earned A's in each of my Electrical Engineering courses. I tutored calculus and calculus-based physics for 2 1/2 years. During that time, I also taught Engineering Statics to a summer school student whose professor would only provide exam dates - he did not teach the course. (read more)