Singular

LIB "polybori.lib";
==> // ** args must be 1 in     system("install", "bideal",   "ideal",    bid\
   eal2ideal, 4);
ring rs=0,(x,y,z),Dp;
def rb3=boolean_poly_ring(rs);
poly f1=x+y;
poly f2=x+z;
bpoly pp =f1;
bpoly p = f2;
bideal Ib;
list K=(p,pp);
Ib=K;
from_boolean_ideal(Ib);
==> _[1]=x+z
==> _[2]=x+y
ring rs2=5,(x,y,z),Dp;
def rb4=boolean_poly_ring(rs2);
poly p1=x+y;
poly p2=x+z;
poly p3=y+z;
bpoly p = p1;
==> // ** redefining p (bpoly p = p1;)
bpoly pp = p2;
==> // ** redefining pp (bpoly pp = p2;)
bpoly ppp = p3;
bideal Ib;
==> // ** redefining Ib (bideal Ib;)
list K=(p,pp,ppp);
==> // ** redefining K (list K=(p,pp,ppp);)
Ib=K;
from_boolean_ideal(Ib);
==> _[1]=x+y
==> _[2]=x+z
==> _[3]=y+z