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Using the point Ma and the point Ha, construct a line a (rule W02);
% DET: points Ma and Ha are not the same
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Using the point Hb and the point Ma, construct a circle k(Ma,B) (rule W06);
% NDG: points Hb and Ma are not the same
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Using the circle k(Ma,B) and the line a, construct a point B and a point C (rule W04);
% NDG: line a and circle k(Ma,B) intersect
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Using the point Hb and the point C, construct a line b (rule W02);
% DET: points Hb and C are not the same
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Using the point Ha and the line a, construct a line ha (rule W10b);
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Using the line b and the line ha, construct a point A (rule W03);
% NDG: lines b and ha are not parallel
% DET: lines b and ha are not the same