\left \llbracket ... \right \rrbracket
. However, the tree always sits in the lower half and leaving the upper half blank, which is very ugly. What's more, I cannot make the angle bracket grow with the tree.Code: Select all
\documentclass{article}
\usepackage{stmaryrd}
\usepackage{qtree}
\usepackage{tikz-qtree}
\begin{document}
$\left \llbracket \textbf{\Tree [.S [.S [ [.NP [.N Ann ] ] [.VP [.V smokes ] ] ] ] and [.S [ [.NP [.N John ] ] [.VP [.V drinks ] ] ] ] ]} \right \rrbracket$ \\
$\left \langle \left ( \Tree [.S [.NP [.N Ann ] ] [.VP [.V smokes ] ] ] \right ) \right \rangle$
\end{document}