reserve a,b,c,d for Real;
reserve r,s for Real;

theorem
  (for a being Real st 1 < a holds b/a <= c) implies b <= c
proof
  assume
A1: for a st a > 1 holds b/a <= c;
    now
      let d;
A2:   d" = 1/d by XCMPLX_1:215;
      assume that
A3:   0 < d and
A4:   d < 1;
      d" > 1" by A3,A4,Lm34;
      then b/(d") <= c by A1;
      then b*d/1 <= c by A2,XCMPLX_1:77;
      hence b <= c/d by A3,Th77;
    end;
    hence thesis by Th209;
end;
