\begin{tabbing}
(\=(D (11)$\cdot$) \+
\\[0ex]CollapseTHEN (Auto$\cdot$)$\cdot$) 
\\[0ex]CollapseTHEN (((if (first\_bool T:b
\-\\[0ex]) then HypSubst' else RevHypSubst') ( {-}1)( 0))$\cdot$)$\cdot$
\end{tabbing}