Hello. my name is Larry. I am currently an Academic Tutor (Math/Computer Science) at a community college. During my time as a tutor, I have worked with a diverse population of students. (read more)
Hello! My name is Andy - I am an 11-year veteran of the U.S. Navy Submarine Force, and have since worked with both defense contractors and commercial nuclear power plants. (read more)
...I have two children now in college, at Ivy League schools. I was their primary caregiver throughout their childhood, and helped them with their schoolwork whenever they needed it. They both took math up through AP calculus (one of them took Calculus BC). One of them took AP Chemistry, the other took AP Physics, so I have seen some of the work done in those classes. (read more)
...The following is a proof done by me on antisymmetric relations, followed by a shorter proof on set intersection of set differences. Set notation is displayed as "?" on this site, obscuring details
A relation R on a set A is antisymmetric if and only if R n R-1 ? {(a, a): a ? A}.
It will f... (read more)