/usr/share/acl2-6.5/books/regex/equal-based-set.lisp is in acl2-books-source 6.5-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 | (in-package "ACL2")
(include-book "defset-macros")
(local (include-book "defset-encapsulates"))
(def-set-equiv equal :prove-elem-congruences nil)
|