Earlier this month, 36 sharp-witted high school students from around the globe stepped foot on the warm and breezy campus of Stanford University. Out of more than 4,000 students from more than 2,000 ...

I'm in a beginning logic class and so far we have learned four rules: Assumption, Modus Pollens, Double Negation and Modus Tollens. I understand everything but Modus Tollens. The other downside is ...