src/FOL/fol.thy
author wenzelm
Thu, 15 Feb 2001 17:18:54 +0100
changeset 11145 3e47692e3a3e
parent 0 a5a9c433f639
permissions -rw-r--r--
eliminate get_def;

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