Question 917547
<pre>We can't tell whether your horseshoes are like this: &#5196;, which has code
{{{drawing(50,15,-2,2,-1,1,locate(-1.7,2.7,"&"),locate(-1.1,1.3,"#5196;") )}}} or like this: &#5198;, which has code {{{drawing(50,15,-2,2,-1,1,locate(-1.7,2.7,"&"),
locate(-1.1,1.3,"#5198;") )}}}
Both look like horseshoes. If you don't use those symbols, you'll do 
better saying "union" and "intersection".

Edwin</pre>