The homeworks in the Fall96 and Spring97 directories are Copyright (c) 1996-1997 by Clyde Ruby. The homeworks in the other are Copyright (c) 1995-1999 by Gary T. Leavens. Permission is granted for you to make copies for educational and scholarly purposes, but not for direct commercial advantage, provided this notice appears on all copies. All other rights reserved. Warning: mistakes, difficulties, etc. in homeworks from previous semesters are often solved in subsequent semesters. If you are an academic and use anything from a semester other than the latest one, you may be in for trouble. So treat all such homeworks carefully. No guarantees or warranty for anything here. If you want to work these old problems, then you'll need the sources from the book, which you can get from ftp://ftp.cs.indiana.edu/pub/eopl/ or the course library, which you can get from ftp://ftp.cs.indiana.edu/pub/eopl/leavens.shar