theorem Th6: :: JGRAPH_7:6

for p1, p2 being Point of (TOP-REAL 2)
for b, d being Real st p2 `2 < d & p2 `2 <= p1 `2 & p1 `2 <= d & p1 `1 < p2 `1 & p2 `1 <= b holds
LE p1,p2, rectangle ((p1 `1),b,(p2 `2),d)