Using the point M_b and the point H_b, construct a line b (rule W02);

% DET: points M_b and H_b are not the same

Using the point H_b and the line b, construct a line h_b (rule W10b);

Choose freely a point B on the line h_b (rule WOnline2)

Choose freely a point A on the line b (rule WOnline1)

Using the point A and the point M_b, construct a point C (rule W01);