The file "mail.lisp" is the main file.  Loading this file will load
all other relevant files.  The first line of mail.lisp calls set-cbd
with the path to the local /books/data-structures directory.  This
needs to be edited to an appropriate local value before loading mail.lisp.

The main files in the distribution are the f-* and p-* files, where
each * is the name of a feature in the email suite.  The f-* files
contain the definitions of the features.  The p-* files contain the
theorems for that feature.  Loading mail.lisp will load all of the
feature and property files for the features included in the current
email system; this set can be changed by editing the constant
*features-present* near the top of mail.lisp.

Code samples in the paper that look slightly different from those in
the code bundle have had macros expanded to keep the paper examples
more concise.

These files were developed under ACL2 version 2.6.

Kathi Fisler
kfisler@cs.wpi.edu