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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 79 of 126
Table of Contents

CROOKED ANSWERS.

                                            -------
                                           | 1 | 0 |
 16.  All y are x, and all x are y.  i.e.  |---|---|
                                           | 0 |   |
                                            -------

                           -------
                          |   |   |
 17.  No x' exist.  i.e.  |---|---|
                          | 0 | 0 |
                           -------

                            -------
                           | 0 | 1 |
 18.  All x are y'.  i.e.  |---|---|
                           |   |   |
                            -------
79