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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 64 of 126
Table of Contents

CROSS QUESTIONS.

               -----------              -----------
              |0    |     |            |     |     |
              |   --|--   |            |   --|--   |
              |  |0 | 0|  |            |  |0 | 1|  |
          1.  |--|--|--|--|        2.  |--|--|--|--|
              |  |1 |  |  |            |  |0 |  |  |
              |   --|--   |            |   --|--   |
              |0    |     |            |     |     |
               -----------              -----------

[See p. 72]

               -----------              -----------
              |     |     |            |     |    0|
              |   --|--   |            |   --|--   |
              |  |0 | 0|  |            |  |  |  |  |
          3.  |--|--|--|--|        4.  |--|--|--|--|
              |  |1 | 0|  |            |  |0 |  |  |
              |   --|--   |            |   --|--   |
              |     |     |            |     |    0|
               -----------              -----------

Mark, in a large Diagram, the following pairs of Propositions

64