ZF/ind_syntax/unvarifyT, unvarify: moved to Pure/logic.ML
ZF/ind_syntax/prove_term: deleted
ZF/constructor, indrule, intr_elim: now call prove_goalw_cterm and
Logic.unvarify
#! /bin/sh
# teeinput -- start a program and log all inputs to a file
# environment variable $LISTEN specifies the file name
tee -a -i $LISTEN | $*