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← 45

The other Square, the xy'-Square, we know (as in the previous example to be 'occupied'. )

If, then, we transfer our marks to the smaller Diagram, we get merely this:--

                  -----------
                 |     |     |
                 |     |  1  |
                 |     |     |
                  -----------

which means, you know, "some x are y'."

These principles may be applied to all the other oblongs. For instance, to represent "all y' are m'" we should mark the ------- RIGHT-HAND UPRIGHT OBLONG (the one | | that has the attribute y' thus:-- |--- | )

                                  | 0 |   |
                                  |---|-1-|
                                  | 0 |   |
47 →
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