src/FOL/fol.thy
author wenzelm
Tue, 23 Aug 1994 19:34:01 +0200
changeset 575 74f0e5fce609
parent 0 a5a9c433f639
permissions -rw-r--r--
added print_syntax: theory -> unit;

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