src/FOL/fol.thy
author paulson
Tue, 20 May 1997 11:34:26 +0200
changeset 3233 16a24111ab5a
parent 0 a5a9c433f639
permissions -rw-r--r--
new treatment of Prover files

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