Hi Luis, With merging as I proposed in my previous post, one gets
sage: K.<r4> = NumberField(x^4-2) sage: L1.<r2_1> = NumberField(x^2-2, embedding = r4**2) sage: L2.<r2_2> = NumberField(x^2-2, embedding = -r4**2) sage: from sage.categories.pushout import pushout sage: pushout(L1,L2) Number Field in r4 with defining polynomial x^4 - 2 But apparently something else is wrong, since r2_1+r2_2 still yields the ERROR that you observed, even though sage: K(r2_1) + K(r2_2) 0 Now I'm puzzled where the ERROR comes from. Cheers, Simon -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
