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(/VERSIONCHECK 2)
(DEFPARAMETER |AbelianSemiGroup;AL| 'NIL)
(DEFUN |AbelianSemiGroup| ()
(LET (#:G1396)
(COND
(|AbelianSemiGroup;AL|)
(T (SETQ |AbelianSemiGroup;AL| (|AbelianSemiGroup;|))))))
(DEFUN |AbelianSemiGroup;| ()
(PROG (#0=#:G1394)
(RETURN
(PROG1 (LETT #0#
(|Join| (|SetCategory|)
(|mkCategory| '|domain|
'(((+ ($ $ $)) T)
((* ($ (|PositiveInteger|) $)) T))
NIL '((|PositiveInteger|)) NIL))
|AbelianSemiGroup|)
(SETELT #0# 0 '(|AbelianSemiGroup|))))))
(SETQ |$CategoryFrame|
(|put| '|AbelianSemiGroup| '|isCategory| T
(|addModemap| '|AbelianSemiGroup| '(|AbelianSemiGroup|)
'((|Category|)) T '|AbelianSemiGroup|
|$CategoryFrame|)))
(MAKEPROP '|AbelianSemiGroup| 'NILADIC T)
|
