b95472e52d623ff18295b2430d555f82c1a4051acmaeder echo "you are using $version"
b95472e52d623ff18295b2430d555f82c1a4051acmaeder echo "uninstall your old Isabelle2012 and install Isabelle2014 by"
b95472e52d623ff18295b2430d555f82c1a4051acmaeder echo " sudo apt-get remove isabelle"
b95472e52d623ff18295b2430d555f82c1a4051acmaeder echo " sudo apt-get install isabelle-installer"
b95472e52d623ff18295b2430d555f82c1a4051acmaeder echo "possibly install Isabelle2014 by"
b95472e52d623ff18295b2430d555f82c1a4051acmaeder echo " sudo apt-get install isabelle-installer"