...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)
...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)