lso holds another job.<br />

3.  All surgeons are doctors.<br />

4.  Joe does not have a lawyer (i.e., is not a customer of any lawyer).<br />

5.  Emily has a boss who is a lawyer.<br />

6.  There exists a lawyer all of whose customers are doctors.<br />

7.  Every surgeon has a lawyer.<br />
</p>
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<p><br /></p>

<div class="card">
    <div class="card-header p-2">
        <a href="ex_12/" class="p-2">Exercise 12 </a>
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