1%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 2% 3% Output predicates 4% This version of the output predicates disables almost all output 5% 6 7pdl_write(_). 8pdl_on_write(_). 9pdl_nl. 10pdl_on_nl. 11pdl_write_ln(_). 12pdl_writef(_,_). 13pdl_tab(_)