Page:Carroll - Game of Logic.djvu/92

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    Let "creatures" be Universe; $m$ = "monkeys"; $x$ = "soldiers"; $y$ = "mischievous".

    No $m$ are $x$; All $m$ are $y$.

    $\scriptstyle {\left.{\begin{matrix}\ \\\ \end{matrix}}\right\}\,}$

    ∴ Some $y$ are $x^{\prime }$.

    i.e. Some mischievous creatures are not soldiers.

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    Let "persons" be Universe; $m$ = "just": $x$ = "my cousins"; $y$ = "judges".

    No $x$ are $m$; No $y$ are $m^{\prime }$.

    $\scriptstyle {\left.{\begin{matrix}\ \\\ \end{matrix}}\right\}\,}$

    ∴ No $x$ are $y$.

    i.e. None of my cousins are judges.

[See p. 53]