(in-package "ACL2") (defconst *import-symbols* (set-difference-eq (union-eq *acl2-exports* *common-lisp-symbols-from-main-lisp-package*) '(null + * - < = / commutativity-of-* associativity-of-* commutativity-of-+ associativity-of-+ distributivity))) (defpkg "FUTER" *import-symbols*) (certify-book "futermino" ? t)