\begin{APLfns}
\begin{APLfnsline}{}{\APLdel}
\APLZ\APLleftarrow\APLE\APLN\APLD\p...
...
\end{APLfnsline}\begin{APLfnsline}{}{\APLdel}
\par
\end{APLfnsline}\end{APLfns}