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

% DET: points C and H_c are not the same

Using the point C and the point T_b, construct a line b (rule W02);

% DET: points C and T_b are not the same

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

Using the line c and the line b, construct a point A (rule W03);

% NDG: lines c and b are not parallel

% DET: lines c and b are not the same

Using the point A, the point C, the point T_b and the line b, construct a point T`_b (rule W19);

% NDG: points A and C are not the same points C and T_b are not the same points C and midpoint([A,T_b]) are not the same

Using the point T_b and the point T`<sub>b</sub>, construct a circle k_over(T<sub>b</sub>,T`_b) (rule W09);

% NDG: points T_b and T`_b are not the same

Using the circle k_over(T_b,T`_b) and the line c, construct a point B_wa and a point B (rule W04);

% NDG: line c and circle k_over(T_b,T`_b) intersect