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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 106 of 126
Table of Contents

CROOKED ANSWERS.

       Let "things" be Universe; m="medicine";
                x="nasty"; y="senna".
             All m are x; &there4 All y are x.
             All y are m.
                    i.e.  Senna is nasty.

[See remarks on No. 7, p 60.]

      ---------------
     |       |       |
     |    ---|---    |
     |   | 0 | 1 |   |
21.  |-1-|---|---|---|        -------
     |   | 0 |   |   |       |   | 1 |
     |    ---|---    |       |---|---|
     |       |       |       |   |   |
      ---------------         -------
        Let "persons" be Universe; m="Jews";
             x="rich"; y="Patagonians".
              Some m are x; &there4 Some x are y'.
              All y are m'.
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