ISABELLE -- INSTRUCTIONS FOR UNPACKING THE EMAIL DISTRIBUTION The Isabelle email distribution consists of about 8 installments, eachsmall enough to send by electronic mail. The files are called Isabelle.aa,Isabelle.ab, .... They have been generated by tar, compress, uuencode, andsplit, and are packed for email using shar. To unpack the files, performthe following steps:STEP 1. Create a new directory to hold Isabelle and move to thatdirectory (the name of the directory does not matter): mkdir Isabelle; cd IsabelleSTEP 2. Put each message into a separate file and pipe it through unshar.(If you don't have unshar, remove the header lines generated by the mailsystem and submit the file to sh.)STEP 3. Concatenate the files into one file using the command cat Isabelle.?? > 92.tar.Z.uuSTEP 4. Undo the uuencode operation using the command uudecode 92.tar.Z.uuSTEP 5. You should now have a file 92.tar.Z; uncompress and unpack it using... uncompress -c 92.tar.Z | tar xf -STEP 6. You should now have a complete Isabelle directory, called 92. Youmay now tidy up by executing rm Isabelle.?? *.hdr 92.tar.Z.uu 92.tar.ZConsult the file 92/README for information on compiling Isabelle. Good luck!