\begin{tabbing}
(\=(((OnHyps [2;1] BoolInd) \+
\\[0ex]C\=ollapseTHEN (Rewrite \+
\\[0ex](\=UnfoldC `bor` \+
\\[0ex]
\\[0ex]ORTHENC HigherC ifthenelse\_evalC 
\\[0ex]ORTHENC HigherC assert\_evalC) 
\-\\[0ex]0))$\cdot$) 
\\[0ex]
\-\\[0ex]CollapseTHEN ((Auto\_aux (first\_nat 1:n) ((first\_nat 1:n),(first\_nat 3:n)) (first\_tok :t
\-\\[0ex]) inil\_term)))$\cdot$
\end{tabbing}