src/FOL/fol.thy
author paulson
Fri, 28 Jun 1996 11:10:32 +0200
changeset 1835 07eee14f5bd4
parent 0 a5a9c433f639
permissions -rw-r--r--
Restored warning comment

FOL = IFOL +
rules
classical "(~P ==> P) ==> P"
end