The following functions of FieldOps (see chapter Fields) are
overlaid in NumberFieldOps:
/, Coefficients, Conjugates, GaloisGroup, in,
Intersection, Norm, Order, Print, Random, Trace.
The following functions of NumberFieldOps are overlaid in
CyclotomicFieldOps:
Coefficients, Conjugates, in, Norm, Print, Trace.
GAP 3.4.4