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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 53 of 126
Table of Contents

CROSS QUESTIONS.

                          -----
                         |     |
                         |     x
                         |     |
                         |--y--|
                         |     |
                         |     x'
                         |     |
                          -----

Taking y="diligent students"; x="successful";

  1. No diligent students are unsuccessful.
  1. All diligent students are successful.
  1. No students are diligent.

There are some diligent,

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