>
                                         <li> 
                                           0 #< D,
                                         </li>
                                         <li> 
                                           not initiallyN(B │{B\=light_on}).
                                         </li> 
                                     </ul> 
                                     </li> 
                                     <li> 
                                       not o_c_holdsAt2(B �