i>
  

            
          
            
              
  
  
  
    <li class="md-nav__item">
      <a href="../../_12-Flexible-Discriminants/ex12-03/" class="md-nav__link">
        Ex. 12.3
      </a>
    </li>
  

            
          
            
              
  
  
  
    <li class="md-nav__item">
      <a href="../../_12-Flexible-Discriminants/ex12-04/" class="md-nav__link">
        Ex. 12.4
      </a>
    </li>
  

            
          
            
              
  
  
  
    <li class="md-