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15 lines
581 B
15 lines
581 B
$\mathcal{A} = \text{People}$ \\
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\begin{enumerate}
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\item $\forall x \big(A(x) \imp \lnot S(x) \big)$ \\
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$A(x) \ldots $ $x$ is Alice \\
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$S(x) \ldots $ $x$ has a sister \\
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\item $\forall x \big(C(x) \imp K(x) \lor Q(x) \big)$ \\
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$C(x) \ldots $ $x$ wears a crown \\
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$K(x) \ldots $ $x$ is a king \\
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$Q(x) \ldots $ $x$ is a queen \\
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\item $\lnot \forall x \forall y \big(L(x,y) \big)$ \\
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$L(x, y) \ldots $ $x$ likes $y$ \\
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\item $\forall x \exists y \big(L(x,y) \big)$ \\
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$L(x, y) \ldots $ $x$ loves $y$
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\end{enumerate}
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