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Changeset 4381


Ignore:
Timestamp:
2016-06-06T19:57:45-07:00 (8 years ago)
Author:
Marek Rychlik
Message:

* empty log message *

File:
1 edited

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  • branches/f4grobner/ring.lisp

    r4380 r4381  
    117117  (:method ((minuend t) &rest subtrahends)
    118118    (cond ((endp subtrahends) (unary-minus (copy-instance minuend)))
    119           (t (reduce #'subtract-from (copy-instance minuend) subtrahends)))))
     119          (t (reduce #'subtract-from subtrahends :initial-value (copy-instance minuend))))))
    120120
    121121(defgeneric multiply (factor &rest more-factors)
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