Hi Volker!

On 7 Jul., 20:30, Volker Braun <vbraun.n...@gmail.com> wrote:
> sage: FF = FiniteField(7)
> sage: P.<x> = PolynomialRing(FiniteField(7))
> sage: x+1

Apparently the problem is in the _element_constructor_:

sage: P(1)
...
/home/king/SAGE/sage-4.4.2/local/lib/python2.6/site-packages/sage/
rings/polynomial/polynomial_ring.pyc in _element_constructor_(self, x,
check, is_gen, construct, **kwds)
    281             elif P == self.base_ring():
    282                 return C(self, [x], check=True, is_gen=False,
--> 283                         construct=construct)
    284             elif self.base_ring().has_coerce_map_from(P):
    285                 return C(self, [x], check=True, is_gen=False,
...

Or is it?
sage: P._element_constructor_(1)
_element_constructor_(Finite Field of size 7, 0)
1

Strange.

Best regards,
Simon

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