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Using the point A and the point Hc, construct a line c (rule W02);
% DET: points A and Hc 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 point Ta and the line c, construct a circle k(Ta,foot[Ta,c]) (rule W11);
% NDG: point Ta is not incident to the line c
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Using the circle k(Ta,foot[Ta,c]), the point A, the point Ta and the line c, construct a line b (rule W13);
% NDG: point A is outside the circle k(Ta,foot[Ta,c])
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Using the line b and the line hc, construct a point C (rule W03);
% NDG: lines b and hc are not parallel
% DET: lines b and hc are not the same
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Using the point Ta and the point C, construct a line a (rule W02);
% DET: points Ta and C are not the same
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Using the line c and the line a, construct a point B (rule W03);
% NDG: lines c and a are not parallel
% DET: lines c and a are not the same