The basic TMYCIN files are: readme This file tmycin.lsp Code arl.lsp Abbreviated Rule Language option tmdoc.tex Documentation, LaTex source tmdoc.doc Documentation, lineprinter style rocks.lsp Very small demo expert system to identify rocks rocks.tst Test run of rocks.lsp snakes.lsp Demo expert system to identify snakes snakes.tst Test run of snakes.lsp gcaux.lsp Lisp functions for use with Gold Hill Common Lisp Do not load both snakes and rocks into the same execution of TMYCIN, since they share parameter names and cause errors if loaded together. TMYCIN is written in Common Lisp. It should run in any of the large commercial Common Lisp implementations. It will run in AKCL (Austin Kyoto Common Lisp). AKCL and Xakcl (AKCL with an interface to X windows) are free, run on many Unix machines, and can be obtained by FTP from rascal.ics.utexas.edu . TMYCIN will run using the student version of Gold Hill Common Lisp with the addition of the file gcaux.lsp ; it is also necessary to edit the TMYCIN file as described in gcaux.lsp .