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

Using the point C, the line c and the point H_c, construct a line h_C,2/3(c) (rule W15);

Choose freely a point G on the line h_C,2/3(c) (rule WOnline4)

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

Choose freely a point A on the line c (rule WOnline1)

Using the point A and the point M_c, construct a point B (rule W01);