On Nov 26, 2:30 am, Simon King <[EMAIL PROTECTED]> wrote:
> Hi!
>
> On Nov 26, 1:51 am, Alex Raichev <[EMAIL PROTECTED]> wrote:
>
> > sage: F.<a>= NumberField(x^2-2)
> > sage: a^2
> > 2
> > sage: a^2 in QQ
> > True
> > sage: a^2 in QQbar
> > False
> > sage: 2 in QQbar
> > True
>
> A related observation:
> sage: F.<a>=NumberField(x^2-2)
> sage: QQ.is_subring(F)
> True
> sage: F.is_subring(QQbar)
> False
>
> Cheers,
> Simon
Simon,
please open a ticket. I would guess as you did that those two related.
Hopefully Carl will have some insight what is going on there.
Cheers,
Michael
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