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(/VERSIONCHECK 2)
(DEFPARAMETER |DivisionRing;AL| 'NIL)
(DEFUN |DivisionRing;| ()
(PROG (#0=#:G1400)
(RETURN
(PROG1 (LETT #0#
(|sublisV|
(PAIR '(#1=#:G1399)
(LIST '(|Fraction| (|Integer|))))
(|Join| (|EntireRing|) (|Algebra| '#1#)
(|mkCategory| '|domain|
'(((** ($ $ (|Integer|))) T)
((|inv| ($ $)) T))
NIL '((|Integer|)) NIL)))
|DivisionRing|)
(|setShellEntry| #0# 0 '(|DivisionRing|))))))
(DEFUN |DivisionRing| ()
(LET ()
(COND
(|DivisionRing;AL|)
(T (SETQ |DivisionRing;AL| (|DivisionRing;|))))))
(MAKEPROP '|DivisionRing| 'NILADIC T)
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