Combinación de Listas

StyleBox[FormBox[RowBox[{Join[, Cell[BoxData[list ], InlineFormula], ,, , Cell[BoxData[list ] ... rm]] 1 2 concatena listas
StyleBox[FormBox[RowBox[{Union[, Cell[BoxData[list ], InlineFormula], ,, , Cell[BoxData[list ... m]] 1 2 combina listas, quitando elementos repetidos y ordenando el resultado

In[29]:=

Join[{a, b, c}, {x, y}, {t, u}]

Out[29]=

{a, b, c, x, y, t, u}

In[30]:=

Union[{a, b, c}, {c, a, d}, {a, d}]

Out[30]=

{a, b, c, d}

Created by Mathematica  (August 6, 2004)