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Changeset 4264 for branches/f4grobner


Ignore:
Timestamp:
2016-06-04T20:45:07-07:00 (9 years ago)
Author:
Marek Rychlik
Message:

* empty log message *

File:
1 edited

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  • branches/f4grobner/integer-ring.lisp

    r4260 r4264  
    8888  self)
    8989
     90(defmethod unary-inverse ((self integer-ring))
     91  (with-slots (value)
     92      self
     93    (case value
     94      (1 self)
     95      (-1 self)
     96      (otherwise (error "Non-invertible ring element: ~S" self)))))
     97
    9098(defmethod universal-zerop ((self integer-ring))
    9199  (with-slots (value)
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