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Hinton - The Fourth Dimension.pdf

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A FOUR-DIMENSIONAL FIGURE 129<br />

Now selecting according to the rule every one of one<br />

kind with every other of every other kind, we must take,<br />

for instance, 3i, 2j, 1k, 0h. This point is marked<br />

3210 at the lower star in the figure. It is 3 in the<br />

i direction, 2 in the j direction, 1 in the k direction,<br />

0 in the h direction.<br />

With 3i we must also take 1j, 2k, 0h. This point<br />

is shown by the second star in the cube 0h.<br />

2130<br />

3120<br />

3210<br />

i<br />

3021<br />

3102<br />

1032<br />

k<br />

1230<br />

1320<br />

2310<br />

2031<br />

j<br />

3201<br />

0h 1h<br />

0132<br />

1302<br />

0312<br />

3021<br />

2h 3h<br />

Fig. 72.<br />

2301<br />

0231<br />

0321<br />

1023 0123<br />

2013<br />

2103<br />

0213<br />

1203<br />

In the first cube, since all the points are 0h points,<br />

we can only have varieties in which i, j, k, are accompanied<br />

by 3, 2, 1.<br />

<strong>The</strong> points determined are marked off in the diagram<br />

fig. 72, and lines are drawn joining the adjacent pairs<br />

in each figure, the lines being dotted when they pass<br />

within the substance of the cube in the first two diagrams.<br />

Opposite each point, on one side or the other of each

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