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Author: OpenMath Consortium SourceURL: https://github.com/OpenMath/CDs
Further to the basic arithmetic functions, we define some more common arithmetic operations. This includes a commutative times which exhibits the use of inheritance within the CD's.
The symbol representing an n-ary multiplication function inheriting from the times in arith1, but with the extra property that here it must be commutative.
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A unary operator which represents the inverse of an element of a set. This symbol could be used to represent additive or multiplicative inverses.
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