src/FOL/fol.thy
author wenzelm
Tue, 14 Mar 2000 11:33:14 +0100
changeset 8450 dc44d6533f0f
parent 0 a5a9c433f639
permissions -rw-r--r--
invoke_case: include attributes;

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