Using the point E_c and the point H, construct a point C (rule W01);

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

% DET: points E_c and H are not the same

Using the point T_c and the point C, construct a line s_c (rule W02);

% DET: points T_c and C are not the same

Using the point T_c and the line h_c, construct a line c (rule W10a);

Using the line c and the line h_c, construct a point H_c (rule W03);

% NDG: lines c and h_c are not parallel

% DET: lines c and h_c are not the same

Using the point H and the point H_c, construct a line m(HH_c) (rule W14);

% DET: points H and H_c are not the same

Using the point E_c, the point C, the point T_c, the line s_c and the line h_c, construct a line CO (rule W17);

% NDG: points C and T_c are not the same points E_c and C are not the same

% DET: points C and T_c are not the same

Using the point E_c and the line CO, construct a line m(H_bH_a) (rule W16);

Using the line m(H_bH_a) and the line c, construct a point M_c (rule W03);

% NDG: lines m(H_bH_a) and c are not parallel

% DET: lines m(H_bH_a) and c are not the same

Using the point M_c and the point C, construct a point G (rule W01);

Using the point H and the point G, construct a point N (rule W01);

Using the point E_c and the point N, construct a circle k(N,M_a) (rule W06);

% NDG: points E_c and N are not the same

Using the circle k(N,M_a) and the line m(HH_c), construct a point E_a and a point E_b (rule W04);

% NDG: line m(HH_c) and circle k(N,M_a) intersect

Using the point E_a and the point H, construct a point A (rule W01);

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