Nature of Proof

A quiet little man was brought before a judge. The judge looked down at the man and then at the charges against him and back at the little man. He could barely conceal his amazement. “Can you tell me in your own words what happened?” he asked the man. “I’m a mathematical logician dealing in the nature of proof.” “Yes, go on,” said the judge. “Well, I was at the library and I found the books I wanted and went to the desk to check them out. I was informed that my library card had expired and that I had to get a new one. So I went to the registration office and got in another line. They gave me a form to fill out so I filled it out and got back in line for my card.” “And?’ said the judge. “Well, the fellow at the desk asked me if I could prove that I’m a New York City resident. So I kicked him in the crotch.”