n></span></span><br></div><span class="goal-separator"><hr></span><div class="goal-conclusion">p</div></blockquote></div></div></small><span class="alectryon-wsp">
</span></span><span class="alectryon-wsp">    </span><span class="alectryon-sentence"><span class="alectryon-input">apply (and.elim_left H),</span><span class="alectryon-wsp">
</span></span><span class="alectryon-wsp">  </span><span class="alectryon-sentence"><span class="alectryon-input">},</span><span class="alectryon-wsp"> </span></span><span 