reserve n,m for Nat;

theorem Th15:
  for f,g being real-valued FinSequence st
  f,g are_fiberwise_equipotent holds min f=min g
proof
  let f,g be real-valued FinSequence;
  assume f,g are_fiberwise_equipotent;
  then min f >= min g & min g >= min f by Lm2;
  hence thesis by XXREAL_0:1;
end;
