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(/VERSIONCHECK 2)
(DEFPARAMETER |DivisionRing;AL| 'NIL)
(DEFUN |DivisionRing| ()
(LET (#:G1399)
(COND
(|DivisionRing;AL|)
(T (SETQ |DivisionRing;AL| (|DivisionRing;|))))))
(DEFUN |DivisionRing;| ()
(PROG (#0=#:G1397)
(RETURN
(PROG1 (LETT #0#
(|sublisV|
(PAIR '(#1=#:G1396)
(LIST '(|Fraction| (|Integer|))))
(|Join| (|EntireRing|) (|Algebra| '#1#)
(|mkCategory| '|domain|
'(((** ($ $ (|Integer|))) T)
((|inv| ($ $)) T))
NIL '((|Integer|)) NIL)))
|DivisionRing|)
(SETELT #0# 0 '(|DivisionRing|))))))
(SETQ |$CategoryFrame|
(|put| '|DivisionRing| '|isCategory| T
(|addModemap| '|DivisionRing| '(|DivisionRing|)
'((|Category|)) T '|DivisionRing| |$CategoryFrame|)))
(MAKEPROP '|DivisionRing| 'NILADIC T)
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