# Page:Carroll - Game of Logic.djvu/90

74
[Ch. III.
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Let "books" be Universe; ${\displaystyle m}$ = "exciting", ${\displaystyle x}$ = "that suit feverish patients"; ${\displaystyle y}$ = "that make one drowsy".

 No ${\displaystyle m}$ are ${\displaystyle x}$; No ${\displaystyle m^{\prime }}$ are ${\displaystyle y}$. ${\displaystyle \scriptstyle {\left.{\begin{matrix}\ \\\ \end{matrix}}\right\}\,}}$ ∴ No ${\displaystyle y^{\prime }}$ are ${\displaystyle x}$.

i.e. No books suit feverish patients, except such as make one drowsy.

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Let "persons" be Universe; ${\displaystyle m}$ = "that deserve the fair": ${\displaystyle x}$ = "that get their deserts"; ${\displaystyle y}$ = "brave".

 Some ${\displaystyle m}$ are ${\displaystyle x}$; No ${\displaystyle y^{\prime }}$ are ${\displaystyle m}$. ${\displaystyle \scriptstyle {\left.{\begin{matrix}\ \\\ \end{matrix}}\right\}\,}}$ ∴ Some ${\displaystyle y}$ are ${\displaystyle x}$.

i.e. Some brave persons get their deserts.

[See p. 52]