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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 74 of 126
Table of Contents

CROOKED ANSWERS.

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                          |   |
 15. Some y exist.  i.e.  |-1-|
                          |   |
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  1. Half of Smaller Diagram.

Symbols interpreted.

  1. No x are y'.
  1. No x exist.
  1. Some x exist.
  1. All x are y'.
  1. Some x are y. i.e. Some good riddles are hard.
  1. All x are y. i.e. All good riddles are hard.
  1. No x exist. i.e. No riddles are good.
  1. No x are y. i.e. No good riddles are hard.
  1. Some x are y'. i.e. Some lobsters are unselfish.

No x are y. i.e. No

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