theorem Th44: :: JGRAPH_5:44

for p1, p2 being Point of (TOP-REAL 2)
for P being non empty compact Subset of (TOP-REAL 2) st P = { p where p is Point of (TOP-REAL 2) : |.p.| = 1 } & p2 in Upper_Arc P & LE p1,p2,P holds
p1 in Upper_Arc P