The day after....
Today in my introductory logic class, we were supposed to start talking about formal deduction: one of the most important, and confusing, topics in the course. When 10am rolled around, there were a lot of missing people. And those who were there mostly looked half-asleep, and many of them looked as if they were about to cry, or scream, or something else. I canceled the class, and several students thanked me.
