theorem
  {p7 where p7 is Point of TOP-REAL 2: p7`2<=p7`1 } is closed Subset of
TOP-REAL 2 & {p7 where p7 is Point of TOP-REAL 2: p7`1<=p7`2 } is closed Subset
  of TOP-REAL 2 by Lm5,Lm8;
