How can I get one element from a set in GAMS?
<p>I have a set<br>
I   workers   /W1,W2,W3/
and variable
T(I)  time Wi does his work 
I need to write a function T1&lt;=T2, so I need to get first and second elements of set I. How can I do this?
this
EQUATIONS eq1; 
eq1 .. T(I('1')) =le= T(I('2')) doesn't work</p>