Riccardo GUIDA wrote:
>
> > This is old confusion between real and complex. We create
> > Complex(Complex(Integer)) and loose.
>
> Naive question: is it not possible/enough to define Complex(R) to be R if R =
> Complex (S)?
No. There are axioms which link 'real', 'imag' and 'complex' that
essentially force current implementation. Trying to cheat
(ignering axioms) is likely to lead to problems in other places.
--
Waldek Hebisch
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