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