The Game of Logic

Name: The Game of Logic
Author: Carroll, Lewis

Carroll, Lewis

Logic -- Juvenile literature; Logic, Symbolic and mathematical

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 14.  All m' are y;      i.e.  |---|---|---|---|
      No x are m'.             |   |   |   |   |
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 15.  All x are m;      i.e.  |---|---|---|---|
      No m are y'.            |   |   | 0 |   |
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 16.  All m' are y';      i.e.  |---|---|---|---|
      No x are m'.              |   |   |   |   |
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 17.  All x are m;       i.e.  |---|---|---|---|
      All m are y.             |   |   | 0 |   |
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[See remarks on No. 7, p. 60.] |       |       |
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 18.  No x' are m;      i.e.  |---|---|---|---|
      No m' are y.            |   | 0 | 0 |   |
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 19.  All m are x;      i.e.  |---|---|---|---|
      All m are y.            |   | 0 | 0 |   |
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  20.  We had better take "persons" as Universe.  We
may choose "myself" as 'Middle Term', in which case
the Premisses will take the form

  I am a-person-who-sent-him-to-bring-a-kitten;
  I am a-person-to-whom-he-brought-a-kettle-by-mistake.

Or we may choose "he" as 'Middle Term', in which case the Premisses
will take the form

Public-domain text, read in full here on John Shaqi.

The Game of Logic

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