\begin{tabbing}
(\=(((UnivCD) \+
\\[0ex]CollapseTHENM (((Unfold `compose` 0) 
\\[0ex]CollapseTHEN (Reduce 0))$\cdot$))$\cdot$) 
\\[0ex]
\\[0ex]CollapseTHENA ((Auto\_aux (first\_nat 1:n) ((first\_nat 1:n),(first\_nat 3:n)) (first\_tok :t
\-\\[0ex]) inil\_term)))$\cdot$
\end{tabbing}