
(/VERSIONCHECK 2) 

(DEFPARAMETER |Ring;AL| 'NIL) 

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

(DEFUN |Ring;| ()
  (PROG (#0=#:G1815)
    (RETURN
      (PROG1 (LETT #0#
                   (|Join| (|Rng|) (|SemiRing|) (|LeftModule| '$)
                           (|unitsKnown|)
                           (|mkCategory| '|domain|
                               '(((|characteristic|
                                      ((|NonNegativeInteger|)))
                                  T)
                                 ((|coerce| ($ (|Integer|))) T))
                               NIL
                               '((|Integer|) (|NonNegativeInteger|))
                               NIL))
                   |Ring|)
        (SETELT #0# 0 '(|Ring|)))))) 

(MAKEPROP '|Ring| 'NILADIC T) 
