1load_package redlog; 2rlset mri; 3on rlverbose; 4 5mrireal x,y; 6 7wex := ex(x,0<y-x and 4(y-x)<1 and cong(2x,1,2)); 8 9rlqe wex$ 10 11rlexpand ws; 12 13end; 14