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nydus/The Game of LogicPublic

This instructional book presents a logic game played with a diagram and nine counters. It explains how to express propositions through the relationship between things and their attributes.

Page 35 of 126
Table of Contents

NEW LAMPS FOR OLD.

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 |   |
                                      |---    |
                                      |       |
                                       -------

and, if we were told to interpret the lower half of the cupboard, marked as follows, with regard to x and y,

                   -------------------
                  |   |     |     |   |
                  |   |     |  0  |   |
                  |   |     |     |   |
                  |    -----|-----    |
                  | 1       |       0 |
                   -------------------
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