src/FOL/fol.thy
author nipkow
Wed, 29 Nov 2000 17:23:27 +0100
changeset 10539 5929460a41df
parent 0 a5a9c433f639
permissions -rw-r--r--
*** empty log message ***

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