Using the point E_b and the point H_b, construct a line h_b (rule W02);

% DET: points E_b and H_b are not the same

Using the point H_b and the line h_b, construct a line b (rule W10a);

Choose freely a point A on the line b (rule WOnline2)

Choose freely a point B on the line h_b (rule WOnline1)

Using the point B and the point E_b, construct a point H (rule W01);

Using the point B and the point A, construct a line c (rule W02);

% DET: points B and A are not the same

Using the point B and the point E_b, construct a circle k(E_b,B) (rule W06);

% NDG: points B and E_b are not the same

Using the circle k(E_b,B), the line c, the point E_b and the point B, construct a point H_c (rule W05);

% NDG: line c and circle k(E_b,B) intersect

% DET: points B and H_c must be different

Using the point H and the point H_c, construct a line h_c (rule W02);

% DET: points H and H_c are not the same

Using the line b and the line h_c, construct a point C (rule W03);

% NDG: lines b and h_c are not parallel

% DET: lines b and h_c are not the same