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

% DET: points E_c and H_c are not the same

Using the point H_b and the point E_c, construct a circle k(E_c,C) (rule W06);

% NDG: points H_b and E_c are not the same

Using the circle k(E_c,C) and the line h_c, construct a point C and a point H (rule W04);

% NDG: line h_c and circle k(E_c,C) intersect

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

% DET: points H_b and C are not the same

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

% DET: points H_b and H 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 line h_b and the line c, construct a point B (rule W03);

% NDG: lines h_b and c are not parallel

% DET: lines h_b and c are not the same