I stayed home not perfectly ¡­

I stayed home not perfectly well today, hence did not get to releasing our next problem set before now. In the laboratory tomorrow, I will lecture for twenty or so minutes on the use of Lisp structures and the integrated development environment. Even though the submission deadline for problem set (1a) is not until next Monday, we would like to encourage people to start on (1b) as soon as possible. Ideally, you would use tonight to finish up (1a) or reveal insurmountable problems that require our help, and then show up for the laboratory in the morning, bright awake and cheerful, and start jointly with us on problem set (1b).