src/FOL/fol.thy
author wenzelm
Mon, 04 Oct 1999 21:35:26 +0200
changeset 7692 89bbce6f5c17
parent 0 a5a9c433f639
permissions -rw-r--r--
added mk_conj, mk_disj, mk_imp;

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