\begin{tabbing}
(\=(SplitITE 0) \+
\\[0ex]CollapseTHEN (Try (((Auto\_aux (first\_nat 1:n) ((first\_nat 1:n),(first\_nat 
\-\\[0ex]3\=:n)) (first\_tok :t) inil\_term)) \+
\\[0ex]CollapseTHEN (Fail))$\cdot$))$\cdot$
\-
\end{tabbing}