\begin{tabbing} (\=(((CDToVarThen `as' ListInd) \+ \\[0ex]CollapseTHENM (Reduce 0))$\cdot$) \\[0ex]CollapseTHENA ( \-\\[0ex](Auto\_aux (first\_nat 1:n) ((first\_nat 1:n),(first\_nat 3:n)) (first\_tok :t) inil\_term)))$\cdot$ \end{tabbing}