src/FOL/FOL.thy
author wenzelm
Mon, 03 Nov 1997 12:26:58 +0100
changeset 4093 5e8f3d57dee7
parent 0 a5a9c433f639
child 4793 03fd006fb97b
permissions -rw-r--r--
added claset thy_data;


FOL = IFOL +

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

end

ML val thy_data = [ClasetThyData.thy_data];