rec-reln3

Test of <reln> with more than 2 children.

W3C sample	WIRIS
[N/A]	$predicate_on_list lt list a b c 10$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <apply>
    <csymbol cd="fns2">predicate_on_list</csymbol>
    <csymbol cd="relation1">lt</csymbol>
    <apply>
      <csymbol cd="list1">list</csymbol>
      <ci>a</ci>
      <ci>b</ci>
      <ci>c</ci>
      <cn>10</cn>
    </apply>
  </apply>
</math>

Author: Dave Doyle, Design Science