src/sage/structure/element.pyx: Fix up doctest

Matthias Koeppe · Matthias Koeppe · commit 3e95ebf75d9c · 2023-01-25T18:38:15.000-08:00
diff --git a/src/sage/structure/element.pyx b/src/sage/structure/element.pyx
@@ -4274,7 +4274,7 @@ cdef class NumberFieldElement(FieldElement):
 
     EXAMPLES::
 
-        sage: sage: k.<a> = NumberField(x^3 + x + 1)
+        sage: k.<a> = NumberField(x^3 + x + 1)
         sage: isinstance(a, sage.structure.element.NumberFieldElement)
         True
 
