\begin{tabbing}
(\=(((((((Unfold `absval` 0) \+
\\[0ex]CollapseTHEN (D 0))$\cdot$) 
\\[0ex]CollapseTHENM (BoolCasesOnCExp 0 $\leq$z $i$
\-\\[0ex])\=)$\cdot$) \+
\\[0ex]CollapseTHENM (AbReduce 0))$\cdot$) 
\\[0ex]CollapseTHEN ((Auto\_aux (first\_nat 1:n
\-\\[0ex]) ((first\_nat 2:n),(first\_nat 3:n)) (first\_tok SupInf:t) inil\_term)))$\cdot$
\end{tabbing}