reserve S for Subset of TOP-REAL 2,
  C,C1,C2 for non empty compact Subset of TOP-REAL 2,
  p,q for Point of TOP-REAL 2;
reserve i,j,k for Nat,
  t,r1,r2,s1,s2 for Real;

theorem Th21:
  W-bound C <= E-bound C
proof
A1: N-min C in C by Th11;
  then
A2: (N-min C)`1 <= E-bound C by PSCOMP_1:24;
  W-bound C <= (N-min C)`1 by A1,PSCOMP_1:24;
  hence thesis by A2,XXREAL_0:2;
end;
