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Last-modified: 2009-02-20 (¶â) 16:45:49
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(a) $G=(N,V,P,S)$
(b) $G=(N,V,P,\allowbreak S)$

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(a) \[  x +  y = 8 \]
    \[ 2x + 4y = 26 \]
(b) \begin{eqnarray*}
       x +  y &=& 8 \\
      2x + 4y &=& 26
    \end{eqnarray*}

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(a) $\mathcal{L}_{\rm star-free}$
(b) $\mathcal{L}_{\rm star\mathchar`-free}$

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