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

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

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

% DET: points C and H are not the same

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

% NDG: points C and O are not the same

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

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

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