\documentclass{article} \begin{document} $$ NAME \left( \left\{ \begin{array}{ccc} a,&THRU,& \left\{ \begin{array}{c} b\\ ALL\\ \end{array} \right\}\\ \:&THRU,& \left\{ \begin{array}{c} b\\ ALL\\ \end{array} \right\}\\ \:&ALL\\ \end{array} \right\} \left[ , \left\{ \begin{array}{c} INCR\\ DECR\\ \end{array} \right\}, C \right] \right) $$ \end{document}