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(/VERSIONCHECK 2)
(DEFPARAMETER |Rng;AL| 'NIL)
(DEFUN |Rng;| ()
(PROG (#0=#:G1397)
(RETURN
(PROG1 (LETT #0# (|Join| (|AbelianGroup|) (|SemiGroup|)) |Rng|)
(SETELT #0# 0 '(|Rng|))))))
(DEFUN |Rng| ()
(LET () (COND (|Rng;AL|) (T (SETQ |Rng;AL| (|Rng;|))))))
(SETQ |$CategoryFrame|
(|put| '|Rng| '|isCategory| T
(|addModemap| '|Rng| '(|Rng|) '((|Category|)) T '|Rng|
|$CategoryFrame|)))
(MAKEPROP '|Rng| 'NILADIC T)
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