 form

=&gt; [0 1]

(indices ov :a)            ;; keyword form, same as #(:a %)

=&gt; [0 1]

(indices ov '(get :a))     ;; list form, same as #(get % :a)

=&gt; [0 1]

(indices ov '(:a))         ;; list form, same as #(:a %)

=&gt; [0 1]</code></pre>
</div><div>
    <span id="by-sets-or"></span>
    <h3>5.4 &nbsp;&nbsp; by sets (or)</h3>
</div><div><p>sets can be used to compose more complex searches by acting as an <code>union</code> operator over its members</p>
</div><div class="code">
    <pre><code cl