# Tag Info

The image description page for the larger image describes it pretty well. Specifically, the line at the top of the figure: shows the 4-ary Boolean function $f(x_1, x_2, x_3, x_4) = x_1 x_2 + x_3 x_4$ in a graphical form. Specifically, interpreting each possible input as a 4-bit binary number (e.g. $(0, 1, 0, 1) \mapsto 0101_2 = 5$), the corresponding ...