Using the point B and the point T_b, construct a line s_b (rule W02);

% DET: points B and T_b are not the same

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

% DET: points M_b and T_b are not the same

Using the point M_b and the line b, construct a line m_b (rule W10b);

Using the line m_b and the line s_b, construct a point N_b (rule W03);

% NDG: lines m_b and s_b are not parallel

% DET: lines m_b and s_b are not the same

Using the point B and the point N_b, construct a line m(BN_b) (rule W14);

% DET: points B and N_b are not the same

Using the line m(BN_b) and the line m_b, construct a point O (rule W03);

% NDG: lines m(BN_b) and m_b are not parallel

% DET: lines m(BN_b) and m_b are not the same

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

% NDG: points B and O are not the same

Using the circle k(O,C) and the line b, construct a point C and a point A (rule W04);

% NDG: line b and circle k(O,C) intersect