Operator redefinition

[Vasile V. Alaiba]

Hello,

Is there any way to redefine operators in oz? How can I create, for example
an abstraction called Complex, and reason with it in terms of '+', '-', etc.
?

ex:
A = {NewComplex 1 0}
B = {NewComplex 1 2}
C = A + B             % is this possible?

Thank you,
    Vasile V. Alaiba

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