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