
(/VERSIONCHECK 2) 

(DEFPARAMETER |OrderedAbelianGroup;AL| 'NIL) 

(DEFUN |OrderedAbelianGroup| ()
  (LET (#:G1817)
    (COND
      (|OrderedAbelianGroup;AL|)
      (T (SETQ |OrderedAbelianGroup;AL| (|OrderedAbelianGroup;|)))))) 

(DEFUN |OrderedAbelianGroup;| ()
  (PROG (#0=#:G1815)
    (RETURN
      (PROG1 (LETT #0#
                   (|Join| (|OrderedCancellationAbelianMonoid|)
                           (|AbelianGroup|))
                   |OrderedAbelianGroup|)
        (SETELT #0# 0 '(|OrderedAbelianGroup|)))))) 

(MAKEPROP '|OrderedAbelianGroup| 'NILADIC T) 
