src/FOL/FOL.thy
author wenzelm
Thu, 15 Jan 1998 13:57:58 +0100
changeset 4578 9f79e84ce00d
parent 4093 5e8f3d57dee7
child 4793 03fd006fb97b
permissions -rw-r--r--
obsolete;


FOL = IFOL +

rules
  classical "(~P ==> P) ==> P"

end

ML val thy_data = [ClasetThyData.thy_data];