ass="clojure">(indices ov #{0 1})        ;; return indices 0 and 1
=&gt; [0 1]

(indices ov #{:a 2})       ;; return indices of searching for both 2 and :a
=&gt; (just [0 1 2] :in-any-order)

(indices ov #{'(:a)        ;; a more complex example
              #(= (:v %) 2)})
=&gt; (just [0 1 2] :in-any-order)</code></pre>
</div><div>
    <span id="by-vectors-and"></span>
    <h3>5.5 &nbsp;&nbsp; by vectors (and)</h3>
</div><div><p>vectors can be used to combine predicates for more selective filtering of elem