No, I don't mean arithmetic

I really liked math back in my school days. Before the age of 15, if asked what I wanted to be when I grew up, I would say, "A mathematician." (As if I had the slightest clue what mathematicians did.) When I was 15, my best friend got a Commodore 64 for his birthday, and I was sucked away into the world of computers. Nevertheless, I still like math, and have learned to enjoy formal logic as well. Here are a few tidbits for you to enjoy.