\begin{tabbing}
(\=(ReplaceWithEqv (TryC (HigherC IntSimpC)) ($a$ $\ast$ $b$) $>$ ($a$ $\ast$ 0) 3) \+
\\[0ex]CollapseTHENA (
\-\\[0ex](Auto\_aux (first\_nat 1:n) ((first\_nat 2:n),(first\_nat 3:n)) (first\_tok :t) inil\_term)))$\cdot$
\end{tabbing}