Using the point H_a and the point H_c, construct a line H_cH_a (rule W02);

% DET: points H_a and H_c are not the same

Using the point H_c and the point T_c, construct a line c (rule W02);

% DET: points H_c and T_c are not the same

Using the point H_c and the line c, construct a line h_c (rule W10b);

Using the line c, the line H_cH_a, the point T_c, the point H_c and the point H_a, construct a line H_bH_c (rule W18);

% NDG: points T_c and H_c are not the same points H_c and H_a are not the same

% DET: points H_c and T_c are not the same

Using the point T_c, the point H_c and the point H_a, construct a circle circle[T_c,H_a,angle[s[c]][a]] (rule W20);

% NDG: points T_c and H_c are not the same points H_c and H_a are not the same points T_c and H_a are not the same

Using the circle circle[T_c,H_a,angle[s[c]][a]] and the line h_c, construct a point C_ca1 and a point C (rule W04);

% NDG: line h_c and circle circle[T_c,H_a,angle[s[c]][a]] intersect

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

% DET: points C and H_a are not the same

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

% NDG: lines c and a are not parallel

% DET: lines c and a are not the same

Using the point B and the point C, construct a point M_a (rule W01);

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

% NDG: points H_c and M_a are not the same

Using the circle k(M_a,B), the line H_bH_c, the point M_a and the point H_c, construct a point H_b (rule W05);

% NDG: line H_bH_c and circle k(M_a,B) intersect

% DET: points H_c and H_b must be different

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

% DET: points C and H_b are not the same

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