ZF/func/empty_fun: renamed from fun_empty
ZF/func/single_fun: replaces the weaker fun_single
ZF/func/fun_single_lemma: deleted
ZF/func.thy: now depends upon equalities.thy
#! /bin/sh
# teeinput -- start a program and log all inputs to a file
# environment variable $LISTEN specifies the file name
tee -a -i $LISTEN | $*