src/FOL/fol.thy
author wenzelm
Fri, 04 Aug 2000 22:54:49 +0200
changeset 9525 46fb9ccae463
parent 0 a5a9c433f639
permissions -rw-r--r--
lemmas atomize = all_eq imp_eq;

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