reserve x,y,t for Real;

theorem
  1<x^2 implies (1/x)^2<1
proof
  assume
A1: 1<x^2;
  then (1/x^2)<((x^2)/(x^2)) by XREAL_1:74;
  then (1^2/x^2)<1 by A1,XCMPLX_1:60;
  hence thesis by XCMPLX_1:76;
end;
