The nucleus of a magma is the set of its members that associate with every member of the magma. That is, an element x is in the nucleus if all of the equations (xy)z = x(yz), (yx)z = y(xz) and (yz)x = y(zx) are satisfied, for all y and z from the magma.

The Nucleus command returns the nucleus of the magma m as a set.

The Magma[Nucleus] command was introduced in Maple 15.

For more information on Maple 15 changes, see Updates in Maple 15.