
(/VERSIONCHECK 2) 

(DEFPARAMETER |StepThrough;AL| 'NIL) 

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

(DEFUN |StepThrough;| ()
  (PROG (#0=#:G1815)
    (RETURN
      (PROG1 (LETT #0#
                   (|Join| (|SetCategory|)
                           (|mkCategory| '|domain|
                               '(((|init| ($) |constant|) T)
                                 ((|nextItem| ((|Union| $ "failed") $))
                                  T))
                               NIL 'NIL NIL))
                   |StepThrough|)
        (SETELT #0# 0 '(|StepThrough|)))))) 

(MAKEPROP '|StepThrough| 'NILADIC T) 
