specify proof output level 1 (i.e. no detailed, potentially huge E proofs) to LEO-II; requires version 1.2.9
# -*- shell-script -*- :mode=shellscript:## Isabelle user settings sample -- for use in $ISABELLE_HOME_USER/etc/settingsISABELLE_USEDIR_OPTIONS="-i true -d pdf"ISABELLE_LOGIC=HOL