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Using the point B and the point Ha, construct a line a (rule W02);
% DET: points B and Ha are not the same
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Using the point B and the point Hb, construct a line hb (rule W02);
% DET: points B and Hb are not the same
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Using the point Hb and the line hb, construct a line b (rule W10a);
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Using the line b and the line a, construct a point C (rule W03);
% NDG: lines b and a are not parallel
% DET: lines b and a 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