src/FOL/FOL.thy
author lcp
Tue, 25 Apr 1995 11:14:03 +0200
changeset 1072 0140ff702b23
parent 0 a5a9c433f639
child 4093 5e8f3d57dee7
permissions -rw-r--r--
updated version

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