Typo in text, and reminder about Wednesday's exam

[Rick]

There is a typo in the text that a student just helpfully pointed out to me. On Page 13, at the end of the paragraph on the top, the text should say:

"So the main operator in (43) is the triple-bar (the biconditional operator), and the main operator in (44) is the tilde (the negation operator) on the far left."

As it is, it says " ... far right." That is a typo. It should say "... far left".

My fault. I get "left" and "right" mixed up all the time. If you're ever driving a car and I'm navigating, turn in the direction I *point* (this will always be correct), not in the direction I *say* (this will be correct about 70% of the time).

Also, remember that there is an exam on Wednesday. It should only take about 20 minutes. When you're finished and have turned it in, you can leave. There won't be lecture after or anything.

Rick