I don&#x27;t quite follow your proof on the last two steps; would you mind explaining? You say it&#x27;s by logical operations, but I&#x27;m missing something because I see:<p>(A &amp;&amp; B &amp;&amp; C) || (A &amp;&amp; D &amp;&amp; C) == (A &amp;&amp; B) || (D &amp;&amp; C)