intersect1

A intersect (B union C)

W3C sample	WIRIS
	$A B C$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <apply>
    <intersect/>
    <ci type="set">A</ci>
    <apply>
      <union/>
      <ci type="set">B</ci>
      <ci type="set">C</ci>
    </apply>
  </apply>
</math>

Author: Design Science, Inc. (E. Cannon, E. Tabacman, R.Miner)